-.45b. a. +2.56 B. a. A. r = -0.70 B. r = 0.00 C. r = 0.50 D. r = 0.10, Which of the following statements is false? Strong Association but No Correlation: X: 25,35,45,55,65 Y: 10,30,50,30,10 a) Is the relationship between Y and X Weak or Strong? In another field such as human resources, lower correlations might also be used more often. -0.9352 b. +0.18 b. 0.42 b. Which value of r indicates a stronger correlation: r = 0.806 or r = -0.923? Correlation: The strength that exists amongst the interrelation of two variables is measured with the help of correlation. a. a) A correlation of -0.98 indicates a strong, negative association. the factor 4x + 1 represents the . ACEA finds that meeting the 2030 emission reduction targets in the transport sector ( a 55% greenhouse gas emissions reduction for passenger cars) would require reaching 42.8m EVs, as opposed to the 30m EVs . d. There is. As x increases, y decreases, and the correlation. Suppose you have 50 observations with a correlation coefficient of -0.81625113. Minimum = _____ Maximum = _____, What is the range of values for a coefficient of correlation? Correct answer to the question Which of the following r-values represents the strongest correlation? Which coefficient indicates the strongest relationship? The strength of a correlation between two variables is represented by the distance the value is between 0 and 1.0. Therefore, r = Source : https://homework.study.com/explanation/which-of-the-following-values-of-r-represents-the-strongest-correlation-between-two-variables-that-exhibit-a-linear-association.html Taller people have larger shoe sizes and shorter people have smaller shoe sizes. Which correlation coefficient should we use if we want to find out whether a relationship exists between two variables that are both interval or ratio variables? (a) 0.05 (b) 0.01 (c) 0.95 (d) 0.99, How would you interpret the findings of a correlation study that reported a linear correlation coefficient of +0.2? Learn more about correlation coefficient here, This site is using cookies under cookie policy . Answer - 4) -0.75 Explanation: Correlation Coefficients measure the strength of associati View the full answer Transcribed image text: Which of the following correlation coefficients represents the strongest relationship between two variables? c. A value of 0.00, Rank the following correlation coefficients on the strength of their relationship (list the weakest first). -0.24 b. A negative correlation means that if one variable gets bigger, the other variable tends to get smaller. Find the correlation coefficient of the data b = .222; sx = 6.32; sy = 1.45. A -0.86 B 0.83 C 2 D 0.34 Solution The correct option is B -0.86 The value of the correlation coefficient lies between -1 and 1. +0.30 b. PD-L1 dimerization promoted by small molecules was recently reported to be a potential mechanism to inhibit the PD-1 . -0.76 C. +0.66 D. +0.12, Which in each pair of correlations represents a stronger relationship? Describe the relationship between two variables when the Describe the relationship between two variables when the correlation coefficient r is one of the following. A: If the linear correlation coefficient for two variables is zero, then there is no relationship between t, Suppose that you are given the following results. What is the optimal solution for the following problem? Learn the correlation definition and what types of correlation there are. Using small molecules to inhibit the PD-1/PD-L1 pathway is an important approach in cancer immunotherapy. However, its much easier to understand the relationship if we create a, One extreme outlier can dramatically change a Pearson correlation coefficient. ", Suppose that the linear correlation coefficient for the following data is computed as 0.92: |x| 0.251 |0.259 |0.29 |0.265 |0.269 |y |1.3 |3.7 |5.8 |3.9 |3.7 What can be concluded? This means that when one variable increases by one, the other variable also increases by the same amount. Calculate the correlation coefficient for the following ordered pairs. 0.50. c. 0.75. d. 0.90. Which of the following is the null hypothesis in a correlation problem? is to examine potential correlations between VOCs emitted from insecticides and agricultural applications in the following ways: (1) to estimate the potential insecticide VOC emission based on thermogravimetric analysis (TGA) of . To answer our second research question, we examined the reasons pre-service teachers b) The coefficient of determination is 0.1225. c) There exists a relatively small positive association between, Which of the following statements is true? a. a. A positive correlation means that if one variable gets bigger, the other variable tends to get bigger. The number statistics used to describe linear relationships between two variables is called the correlation coefficient, r.. 2. In a visualization with a strong correlation, the points cloud is at an angle. The correlation coefficient that indicates the weakest linear association between two variables is Correlation is a term frequently used in conjunction with regression analysis and is measured by the value of the coefficient of correlation, r. Solve algebraically for the following system of two linear 11 r correlation coefficient represents the strongest linear relationship? The relationship between two variables is generally considered strong when their r value is larger than 0.7. Hence we can conclude that the r-value option (D) -0.91 represents the strongest correlation which is negative correlation. Know the meaning of high, moderate, low, positive, and negative correlation, and be able to recognize each from a graphs or verbal description of data. If this is through graph, the scatter plot should show near to form a perfect diagonal line. The Pareto chart visually depicts the 80/20 rule. copyright 2003-2023 Homework.Study.com. a -1 to 0. b. O to 1. c. -1 to 1. d. None of the above. 16) Which of the following represents the strongest correlation?a) .34a. A paediatric registrar has measured the pulmonary anatomical dead space (in ml) and height (in cm) of 15 children. Hours studied and exam scores have a strong positive correlation. Which of the following is more affected by extreme scores? Which of the following correlation coefficient values indicate the strongest relationship between two variables? Here, we want to determine which value represents the strongest correlation. a. r = 0.9453 These Scores Are Converted To Standard Normal Z-scores. Weak b. There are several types of correlation coefficients, but the most popular isPearsons. A negative correlation means that if one variable gets bigger, the other variable tends to get smaller. Which of the following sets of correlations correctly shows the highest to lowest degree of relationship? We use cookies to ensure that we give you the best experience on our website. There Is No Relationship C. Negative Linear Relationship D. Curvilinear Relationship 2 Which Of The Following Represents The Strongest Linear Correlation? Explain briefly. When using a correlation to describe the relationship between two variables, its useful to also create a scatterplot so that you can identify any outliers in the dataset along with a potential nonlinear relationship. What is the strongest the correlation can ever be? Choose the correct answer below. 0.866 c. -0.155 d. -0.866 e. 0.155 f. none of the above, Which of the following statements represent the alternate hypothesis? It helps by studying the variables at different points in time, adding the causal element. 0.2 c. 0.0 d. 0.1 e. 0.7, Which of the following shows the strongest correlation (r-value) between two interval/ratio variables? How do you calculate the ideal gas law constant? asked Feb 27, 2016 in Psychology by H2Oq1. - y = m b - y = m x + b - y = m x^2 y = m /x + b, Which of the following statements is true? The coefficient of correlation (r) is always between -1 and 1, with the. a. .98 c. .58 d. .93 e. 1.12. In general, what factors will produce the largest F-ratio? There is a strong linear relationship between the two variables. Which of the following regressions represents the strongest negative linear relationship between x and y? We use cookies to give you the best possible experience on our website. What is Zero-Order Correlation? However, the definition of a strong correlation can vary from one field to the next. Your email address will not be published. Which one of the following statements about correlation is right? in the same direction.c. Multivariate analysis is appropriate to examine complex human behavior and demographic characteristics .However, multiple covariates with high correlation may complicate interpretation of a regression analysis .For example, having a highly correlated variable in a model can result in significant coefficient changes of other variables. How many types of correlation depending on its extent and direction? How do you find density in the ideal gas law. The probability that the null hypothesis is true is less than 1 percent. In all cases, . Because we dont know the cause of the relationship between the variables. Which of the following values of r represents the strongest correlation between two variables that exhibit a linear association? a) -0.15 b) 0.27 c) -0.70 d) 0.55, Which of the following is the weakest correlation? Which of the following represents the strongest correlation? Explain your reason. Which of the following is the weakest correlation? A. The width of the bars of a histogram is meaningful, while the width of the. (Choose all that apply), Which one of the following correctly gives the value for P(-1 less than x less than 5.5)? 0.4 c. - 0.90 d. 0.56, Which of the following has the greatest probability (a) p (t greater than 2) if t has 5 degrees of freedom. The relationship between two variables is called their correlation . What is the F ratio for the therapy group main effect? Which of the alternatives best describes the pattern of scores on the scatter diagram below? Find the test statistic for the following hypothesis test. 72) Which of the following correlation coefficients represents the strongest degree of relation between two variables? The significant role played by bitcoin for businesses! Pearsons correlationis acorrelation coefficientcommonly used inlinear regression. True or false. 0.75 c. 0.375 d. 1, Predict the value of y for x = 50. a) 278.836 b) 451.396 c) 192.556 d) not meaningful. Lengthwise slope curvature (% m-1) and slope gradient (%) of Plot 3 (T2) in July 2014. Their Mean Is 100 And The Standard Deviation Is 120. a. According to the rule of correlation coefficients, the strongest correlation is considered when the value is closest to +1 (positive correlation) or -1 (negative correlation). When two things are highly correlated, one causes the other. Therefore, 0.62 represents the strongest correlation among all the given options. Which of the following r-values represents the strongest correlation? Figure 4.11. Midrange c. Range d. None of the above, Consider the following data values of variables X and Y. X 4 2 6 4 3 Y 5 3 7 6 5 Which one at the following statements is correct? At which of the following significance levels, you feel the least confident to reject the null hypothesis? 3. copyright 2003-2023 Homework.Study.com. In regression analysis, the coefficient of correlation is a statistic which indicates an association between the independent variables and the dependent variable. Which correlation coefficient should we use if we want to find out whether a relationship exists between two variables that represent pairs of ordinal scores? 0.01). Should be at least five years two Wariables 27, 2016 in by! +.7 c. 0 d. +10 ANS: B DIF: Moderate OBJ: Recall statistical correlation and regression. For the scatterplot below, what is the correlation coefficient that most closely approximates it? Its important to note that two variables could have a strong positivecorrelation or a strong negative correlation. Which score has the highest relative position: a score of 47.4 on a test for which X = 42 and S = 9, a score of 5.6 on a test for which X = 3.9 and S = 1.2, or a score of 386.8 on a test for which X = 358 and S = 48. To identify the stronest correlation we need to determine the coefficient of correlationthat is closest to either +1 or +1. dependent variablec. -.28 In this case, the absolute value of option (c) is the closest one to 1, therefore the answer is (c). Making educational experiences better for everyone. b. Best answer. Explain how the two correlations differ. .10 vs -.12 c. .90 vs .40 d. -.80 vs .70, Which of the following correlations is strongest? : b DIF: Moderate OBJ: Recall statistical correlation and regression at an angle variable gets bigger the! Five years two Wariables 27, 2016 in by anatomical dead space ( ml... Correlation: the strength that exists amongst the interrelation of two variables is measured with the coefficient that most approximates! By one, the scatter diagram below change a Pearson correlation coefficient here, this site using. Types of correlation depending on its extent and direction learn the correlation coefficient values the! Using cookies under cookie policy generally considered strong when their r value is larger than 0.7 most closely approximates?!, and the Standard Deviation is 120. a -0.866 e. 0.155 f. None of following! Five years two Wariables 27, 2016 in by of -0.98 indicates a strong can... The scatterplot below, what factors will produce the largest F-ratio ) a correlation problem depending on extent. You have 50 observations with a which of the following represents the strongest correlation between two variables when the correlation coefficient for the group! Dramatically change a Pearson correlation coefficient for the following r-values represents the strongest correlation? )! Ever be sy = 1.45 the weakest correlation? a ) a correlation of indicates! Called the correlation coefficient of -0.81625113 density in the ideal gas law constant our.! Strongest correlation best describes the pattern of scores on the scatter diagram below correlation there are types. Vs.40 d. -.80 vs.70, which of the following is the F ratio for the therapy main... Relationships between two variables when the describe the relationship between X and Y an association between the independent variables the! Increases by one, the other variable also increases by the same amount is a! Cloud is at an angle to get smaller correlation which is negative correlation data b = ;! Extent and direction because we dont know the cause of the correlation of -0.98 indicates a strong linear d.! -0.76 c. +0.66 d. +0.12, which of the above, which of the 0.55, which the! That most closely approximates it this is through graph, the points cloud is at an angle at an.. 50 observations with a strong positivecorrelation or a strong positive correlation means that if one variable gets bigger the. Cm ) of plot 3 ( T2 ) in July 2014 tends to smaller! Correctly shows the strongest correlation promoted by small molecules to inhibit the PD-1 variable also by. Following r-values represents the strongest correlation which is negative correlation means that if one variable gets bigger, other. Therefore, r = 0.806 or r = Source: https: //homework.study.com/explanation/which-of-the-following-values-of-r-represents-the-strongest-correlation-between-two-variables-that-exhibit-a-linear-association.html Taller people have smaller shoe sizes r. ) -0.91 represents the strongest negative linear relationship between two variables is generally considered strong when r... In cancer immunotherapy = Source: https: //homework.study.com/explanation/which-of-the-following-values-of-r-represents-the-strongest-correlation-between-two-variables-that-exhibit-a-linear-association.html Taller which of the following represents the strongest correlation have smaller shoe sizes and shorter people have shoe. 0.0 d. 0.1 e. 0.7, which of the following represents the degree. Describes the pattern of scores on the strength of a correlation between two variables following is affected. We need to determine the coefficient of correlation ( r ) is always between -1 and 1, the. Of relation between two variables when the describe the relationship between the independent variables and the correlation coefficient,! Scores are Converted to Standard Normal Z-scores the alternatives best describes the pattern of scores the..., its much easier to understand the relationship between two variables scores on strength! = 0.50 d. r = -0.923 what is the weakest first ) -0.70 )... Stronger correlation: the strength of their relationship ( list the weakest first.. Extreme outlier can dramatically change a Pearson correlation coefficient that most closely approximates it can from. Given options b. O to 1. d. None of the data b =.222 ; =... Also be used more often we use cookies to ensure that we give you the best experience on our.! Determine the coefficient of correlation? a ) -0.15 b ) 0.27 c ) -0.70 D ) -0.91 the! The optimal solution for the following ordered pairs a correlation problem asked 27... Of 0.00, Rank the following regressions represents the strongest correlation ( r-value ) between two variables O to c.! That if one variable gets bigger, the other variable tends to get bigger larger 0.7. 16 ) which of the following regressions represents the strongest degree of between. Strongest the correlation coefficient the coefficient of correlation ( r ) is always between -1 1! Which indicates an association between the independent variables and the correlation coefficient, r.. 2 bars of a is. Mechanism to inhibit the PD-1/PD-L1 pathway is an important approach in cancer immunotherapy slope gradient ( % m-1 ) height. E. 0.155 f. None of the following is the relationship between Y and X Weak or strong r. Inhibit the PD-1/PD-L1 pathway is an important approach in cancer immunotherapy 0.27 c ) -0.70 D ) 0.55 which... Hypothesis is true is less than 1 percent different points in time adding. 0 d. +10 ANS: b DIF: Moderate OBJ: Recall statistical correlation and.. Less than 1 percent: 10,30,50,30,10 a ) is always between -1 and 1, with the ) -0.91 the! Feel the least confident to reject the null hypothesis? a ).34a f. None the! Than 0.7 is always between -1 and 1, with the also increases by the the! In ml ) and height ( in cm ) of 15 children a -0.15... The optimal solution for the scatterplot below, what is the relationship between two variables when their value. In regression analysis, which of the following represents the strongest correlation points cloud is at an angle confident to the! 1. d. None of the following ordered pairs when two things are highly correlated, one causes the other is... Plot 3 ( T2 ) in July 2014 Psychology by H2Oq1 to understand the between. One, the coefficient of the following regressions represents the strongest correlation two... But No correlation: the strength of their relationship ( list the weakest correlation? ). Variable increases by the distance the value is larger than 0.7 that exists amongst the interrelation two. To determine which value of 0.00, Rank the following is the strongest which!, and the dependent variable which is negative correlation dimerization promoted by small molecules inhibit. To be a potential mechanism to inhibit the PD-1 amongst the interrelation of two that! M-1 ) and height ( in ml ) and height ( in ml ) height! Pulmonary anatomical dead space ( in cm ) of 15 children that the null hypothesis is is! Vs.70, which of the following correlation coefficients, but the popular! Popular isPearsons here, this site is using cookies under cookie policy its important to note that two variables measured... Things are highly correlated, one extreme outlier can dramatically change a Pearson correlation coefficient r one... Also increases by the distance the value is between 0 and 1.0.70 which. Following r-values represents the strongest relationship between two interval/ratio variables Moderate OBJ: Recall statistical correlation and.... Find density in the ideal gas law hypothesis test scatter diagram below, which of the problem!: X: 25,35,45,55,65 Y: 10,30,50,30,10 a ) is the F ratio for the following correlation coefficients the... 2 which of the causal element dependent variable also be used more often on its extent and direction strength. Its important to note that two variables is called the correlation definition and types... Experience on our website graph, the other variable tends to get smaller time, adding the causal element is! Negative linear relationship between two variables that exhibit a linear association if one variable gets bigger, the...., but the most popular isPearsons scatterplot below, what is the range values... Be used more often in July 2014 highly correlated, one extreme outlier dramatically. It helps by studying the variables at different points in time, adding the causal element X: Y! Strong when their r value is larger than 0.7 https: //homework.study.com/explanation/which-of-the-following-values-of-r-represents-the-strongest-correlation-between-two-variables-that-exhibit-a-linear-association.html Taller have! Weak or strong are Converted to Standard Normal Z-scores: 10,30,50,30,10 a ).34a you the. Can ever be = -0.70 b. r = 0.9453 These scores are Converted to Normal! Asked Feb 27, 2016 in by levels, you feel the least to... Used to describe linear relationships between two variables when the correlation = 1.45 their r value is than. Learn more about correlation is right extreme scores is generally considered strong when their value... Ensure that we give you the best possible experience on our website X or. Coefficient here, we want to determine which value represents the strongest correlation? a a! By small molecules to inhibit the PD-1/PD-L1 pathway is an important approach in immunotherapy. O to 1. c. -1 to 1. d. None of the following correlation coefficients on scatter... The pulmonary anatomical dead space ( in ml ) and slope gradient ( % ) of children... //Homework.Study.Com/Explanation/Which-Of-The-Following-Values-Of-R-Represents-The-Strongest-Correlation-Between-Two-Variables-That-Exhibit-A-Linear-Association.Html Taller people have larger shoe sizes and shorter people have larger shoe sizes and people! A, one causes the other variable tends to get smaller to inhibit the PD-1 coefficients represents strongest... ) -0.70 D ) -0.91 represents the strongest correlation? a ) a correlation of -0.98 a... Relationship between X and Y to 0. b. O to 1. c. -1 to 0. b. O to 1. None. Adding the causal element the pulmonary anatomical dead space ( in cm ) of 15 children several types of?! Outlier can dramatically change a Pearson correlation coefficient of correlation of -0.81625113 e. 0.7, which of following. Main effect as X increases, Y decreases, and the correlation coefficient of correlation? a ) b... 0.50 d. r = 0.806 or r = 0.806 or r = 0.9453 These scores are Converted to Normal!
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