write the column with header "New" where each number is the product of the first value of $Y(3\mathrm{.}3)$ and the respective values of $x$

$($the first number will be $3\mathrm{.}3*105,$ next $3\mathrm{.}3*115)$

Also calculate the value of this expression using the $Y$ vector above

$Y^{\text{'}}Y-\frac{(yi{)}^2}{n}=$

$108\mathrm{.}7507692<--$ place the answer here

where $Y$ is the complete Y $-$vector and $Y^{\text{'}}$ is the transpose of the Y $-$vector. The size of the vector is n $.$