Question

A random sample of 11 truant students produced the following data, where x is the number of classes missed, and y is the final exam score (out of a maximum of 75 points). The data are presented below in the table of values.

x	y
10	54
11	41
12	37
14	36
15	29
16	28
18	28
19	26
22	19
25	19
26	18

What is the equation of the regression line?

Select the correct answer below:

yˆ=−1.821x+17.1

yˆ=−1.821x+61.6

yˆ=10.912x+61.6

yˆ=10.912x+17.1

Answer 1

The statistical software output for this problem is:

Hence,

Equation of regression line will be:

y = -1.821x + 61.6

Option B is correct.