help me on this..

X=74,93,55,41,23,92,64,40,71,33,30,71

Y=81,86,67,35,30,100,55,52,76,24,48,87

Find The Linear Regression Line “Y= a + b X” for the above data. Here “a” is Y-intercept and “b” is the slope of the line.

Find a and b

(i) Using Excel function.

(ii) Using Excel Regression Tool.

Thnx