A psychologist wants to determine if there is a linear relationship between the number of hours a person goes without sleep and the number of mistakes he/she makes on a simple test. The following data is recorded. Determine the equation of the regression line and graph the line on a scatter plot .
$\begin{array}{ll}
\text { Hours without Sleep, } x & \text { Number of Mistakes, } \
32 & 6 \
38 & 8 \
48 & 13 \
24 & 5 \
46 & 7 \
35 & 6 \
30 & 5 \
34 & 8 \
42 & 12
\end{array}$

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The Answer of A psychologist wants to determine if there is a linear relationship between the number of hours a person goes without sleep and the number of mistakes he/she makes on a simple test. The following data is recorded. Determine the equation of the regression line and graph the line on a scatter plot .
$\begin{array}{ll}
\text { Hours without Sleep, } x & \text { Number of Mistakes, } \
32 & 6 \
38 & 8 \
48 & 13 \
24 & 5 \
46 & 7 \
35 & 6 \
30 & 5 \
34 & 8 \
42 & 12
\end{array}$

A Psychologist Wants to Determine If There Is a Linear