a teacher wants to know how much she can predict a student reading level in a given school district. the table shows the grade a

Question

3 years ago

5

a teacher wants to know how much she can predict a student reading level in a given school district. the table shows the grade a

nd reading levels of eight student. what percent of variation in the reading level can be explained by changes in the grade level

Mathematics

1 answer:

Rus_ich [418] · Answer 1 · 2022-04-20T15:00:52+03:00

The correct answer for this question is this one: "B. 90.7%" The percent of variation in the reading level can be explained by changes in the grade level is 90.7%
You have to compute the coefficient of correlation and then use a formula to get the explained variation.

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These are the following choices:
A. 74.7%
B. 90.7%
C. 82.4%
D. 86.6%