Below you are given calories and protein of 7 whey protein brands



#

Calories

Protein

1

250

25

2

287

23

3

184

28

4

263

28

5

244

28

6

191

28

7

215

30






For these data (the two variables), compute:

a) The mean, median, first quartile and third quartile.

b) Compute the range, interquartile range, variance, standard deviation and coefficient of variation.

c) Compute the z-score;

d) Compute the variance and correlation between the two variables.

e) Ensure that you comment each obtained result.