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Chapter 12: Q.12.11 (page 697)

Data are collected on the relationship between the number of hours per week practicing a musical instrument and scores on a math test. The line of best fit is as follows: 欧=72.5+2.8xWhat would you predict the score on a math test would be for a student who practices a musical instrument for five hours a week?

Short Answer

Expert verified

The score on a math test would be for a student who practices a musical instrument for five hours a week is86.5.

Step by step solution

01

Given information

Given in the question that

The data is the relationship between the number of hours per week practicing a musical instrument and scores on a math test.

y^=72.5+2.8x

02

Solution

The linear equation given in the question is

y^=72.5+2.8x

So,

x=5

Place the value of the xin the equation to get the value of predict,

role="math" localid="1648710328622" y^=72.5+2.8x

=72.5+2.8(5)

=72.5+14

=86.5

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