Answer the questions that follow. The same response may be the correct answer for more than one question. 114 10- 10- 10- 10- 9- 8- 9- 9. 8. 7. 6-4 5. 7. 6. 5. 4. Figure 1 Figure 2 Figure 3 Figure 4 1. Which data set indicates the strongest negative linear relationship between its two variables? Choose one 2. For which data set is the correlation coefficient r closest to 1? Choose one 3. For which data set is the correlation coefficient r closest to 0? Choose one

Answer the questions that follow. The same response may be the correct answer for more than one question. 114 10- 10- 10- 10- 9- 8- 9- 9. 8. 7. 6-4 5. 7. 6. 5. 4. Figure 1 Figure 2 Figure 3 Figure 4 1. Which data set indicates the strongest negative linear relationship between its two variables? Choose one 2. For which data set is the correlation coefficient r closest to 1? Choose one 3. For which data set is the correlation coefficient r closest to 0? Choose one

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Which of the following statements about correlation are true? Check all that apply. If the correlation between two variables is 0, there is no clear linear relationship between the two variables. Correlation measures and describes the behavior of a single variable. A correlation of 1 indicates that there is little or no linear relationship between the two variables. If the correlation between two variables is –1, it indicates a perfect negative linear relationship between the two variables. A negative correlation means that two variables tend to change in opposite directions. The correlation indicates the strength and the direction of the linear relationship between two variables. If the correlation between two variables is close to 1, there is a positive linear relationship between the two variables.
Problem 5 Find the probabilities for each, using the standard normal distribution. Draw and shade the area. a) P (0 -1.43)
If the correlation between variables A and B is +1.35… A. The relationship is negative. B. The relationship is positive. C. The relationship is positive and very strong. D. We have miscalculated.
Given the bivariate data. For X, we have 1, 2, 3, 5, 6 and the corresponding value for Y, we have 7, 5, 3, 2, 1. Find the value of the linear correlation coefficient.a. – 1.117b. – 0.961c. 0.961d. 1.116
a. Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. r = ____ b. Calculate the correlation coefficient r, letting row 2 represent the x-values and row 1 the y-values. r = _____ c. What effect does switching the variables have on the correlation coefficient?
Match each scatterplot shown below with one of the four specified correlations. O O O O O O 8 0% O O 00 00 O Do O O O 8 8 O O 00 o o O 00 a O O O a. 0.31 b. -0.26 c. 0.87 d. -0.82
Use the data values in the table below to calculate the correlation between the variables x and y. Submit the link through Canvas to either a photo of your work on paper or a link to a google sheet. y 4 9.8 11.55 6. 11.3 7. 14.45 8. 13.4 9. 17.75 10 15.7 11 19.35 Give your answer to three decimal places. se Submit Question ere to search
The Pearson correlation coefficient would indicate that the data set below has a(n): A. strong positive relationship. B. strong negative relationship. C. undefined relationship because the line is horizontal. D. relationship that is near zero because no linear relationship exists.
Use the data values in the table below to calculate the correlation between the variables x and y. Submit the link through Canvas to either a photo of your work on paper or a link to a google sheet. X 3 4 5 6 7 8 9 10 11 y 9.06 8.24 9.02 7.5 9.18 9.96 7.04 6.52 9 Give your answer to three decimal places.
Suppose the correlation between variables x and y isr = – 1. Also suppose that the data contains the points (6, 14) and (2, 18). Finally, suppose that the x-values in the data set are: æ 2 3 5 6 8 Make a scatterplot of this data set. 20+ 19 18 17 16 15 14 13 12 10 8 6 6
The following statement contains an error. Choose the statement that best explains the error. "The correlation between shoe size and height is 0.87 inches" A. Correlation requires that both of the variables be categorical B. When stating the correlation coefficient, one must state whether it is a positive or negative relationship C. This statement does not tell us whether or not shoe size is correlated with height D. When reporting correlation, one does not report units because correlation has no units E. There is no error in this statement
11. 1.0 8.3 1.0 4.0 10- 9- 10- 9 2.0 5.2 2.0 5.7 8- 3.0 9.8 3.0 6.9 7 6- 7- 4.0 6.1 6+ 54 4+ x 3 4.0 4.3 5- 5.0 1.7 5.0 5.2 4- 6.0 | 5.1 3 6.0 8.1 2- 2 7.0 | 5.7 1- 7.0 9.2 1- 8.0 3.8 8.0 6.7 9.0 9.6 9.0 8.9 10.0 6.6 Figure 1 10.0 8.0 Figure 2 m 114 3.3 10- 1.0 1.0 7.7 10+ 9- 2.0 4.5 9- 2.0 6.9 3.0 3.8 3.0 8.1 6- 4.0 6.1 5.0 7.0 4.0 5.2 5- 5- 5.0 | 4.3 4- 6.0 4.5 4. 3 2- 6.0 7.1 7.0 2 5.9 7.0 5.2 8.0 7.6 8.0 | 3.6 9.0 6.9 9.0 4.6 10.0 7,7 | Figure 3 10.0 3.1 Figure 4 Answer the following questions about the relationships between pairs of variables and the values of r, the sample cc be the correct answer for more than one question. Explanation Check O oololole