A researcher gathered data for individuals looking at age and cognitive skills (scale of 1 to 100). For the following data calculate the r and the r. Determine if the relationship between the two variables is weak, moderate, or strong. What is the proportion of variation explained? cognitive skills Case L2345678 1 age 60 49 50 55 60 55 50 53 91 81 90 99 95 89 88 87

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 24PFA
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A researcher gathered data for individuals looking at age and cognitive skills (scale of 1 to 100). For the following data calculate the r and the r². Determine if the relationship
between the two variables is weak, moderate, or strong. What is the proportion of variation explained?
Case
cognitive skills
1
2
3
4
5677.
8
age
60
49
50
55
60
55
50
53
91
81
90
99
95
89
88
87
Transcribed Image Text:A researcher gathered data for individuals looking at age and cognitive skills (scale of 1 to 100). For the following data calculate the r and the r². Determine if the relationship between the two variables is weak, moderate, or strong. What is the proportion of variation explained? Case cognitive skills 1 2 3 4 5677. 8 age 60 49 50 55 60 55 50 53 91 81 90 99 95 89 88 87
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