Which value of r indicates a stronger correlation: r=0.844 or r= -0.867? Explain your reasoning.Choose the correct answer below.O A. r= -0.867 represents a stronger correlation because | -0.867| > |0.844.B. r=0.844 represents a stronger correlation because 0.844> -0.867.OC. r=0.844 represents a stronger correlation because | -0.867| > |0.844|.D. r= -0.867 represents a stronger correlation because 0.844 > -0.867.

The r values are 0.844 and -0.867.

Answered: Which value of r indicates a stronger…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Which value of r indicates a stronger correlation: r= 0.841 or r= - 0.949? Explain your reasoning. Choose the correct answer below. O A. r= 0.841 represents a stronger correlation because -0.949 > 0.841|. B. r= - 0.949 represents a stronger correlation because -0.949|> |0.841|. C. r= - 0.949 represents a stronger correlation because 0.841 > - 0.949. D. r= 0.841 represents a stronger correlation because 0.841 > - 0.949.
a. Calculate the sample covariance.X Y-3 -913 95 12b. Calculate the sample correlation.c. Describe in words the information given to us by the sample covariance and by the sample correlation.Explain how the correlation gives us more precise information.d. Explain why the covariance is not a good measure of the strength of the linear relationship between the twovariables.e. Sketch a scatterplot of a bivariate dataset with a correlation of 0.9f. Sketch a scatterplot of a bivariate dataset with a correlation of -0.3.
Distinguish the correlation shown in the graph below. Summarize why it is the chosen correlation. 30 Use the paperclip button below to attach files. Student can enter max 3000 characters 1- XD 2= DELL to B I U 25 de 2
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Q14Mariam wants to see how the number of absences for a student in her class affects the student’s final grade. The data obtained from a sample are shown. Absences (x)1012208Grade (y)7055968475 Find the correlation coefficient between number of absences and final grade. Round your answer to three decimal places.
Match the correlation coefficients with their scatterplots. Select the letter of the scatterplot below which corresponds to the correlation coefficient. (Click on image for a larger view.) B < 1. r = -0.49 A 2. r = 0.97 D ✓ 3. r = 0.22 4. r = -0.74 A B D
Q28
Suppose in a given problem about the correlation between height and weight of 20 college students, we come up with an r value of 0.93. What is the value of the coefficient of determination? a. 0.84b. 0.85c. 0.86d. 0.87
The strength of the correlation is indicated by a number value and the closer that value is to zero, the weaker the correlation. O True O False
A correlation value of -0.15 is considered a(n) ______ correlation. a. insignificant b. small c. large d. medium
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◄ Calculate r for the set of data using any technology of your choice. Round values to the nearest hundredth. Interpret r, what type of correlation, if any, does the data have? Does the data show a positive or negative association? X y 1 5 1.5 4.5 2 0.6 2.2 3.3 3.8 3.5 3 2.8

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