please provide excel sheet and formulas

The file Cereals lists the calories and sugar, in grams, in one serving of seven breakfast cereals:

cereal	calories	sugar
kellogg's all bran	80	6
Kellogg's corn flakes	100	2
wheaties	100	4
natures path organic flakes	110	4
kellogg's rice krispies	130	4
post shredded wheat	190	11
kellogg's mini wheats	200	10

a. Calculate the covariance.

b. Calculate the coefficient of correlation

c. Which do you think is more valuable in expressing the relation-ship between calories and sugarthe covariance or the coeffi-cient of correlation? Explain.

d. Based on (a) and (b), what conclusions can you reach about the relationship between calories and sugar?