Activity of a some  enzyme was calculated  in extracts from brain, heart and lung. In every  tissue,  the activity was calculated  various  times, giving the following results (in arbitrary units):  

brain: 65, 69, 70, 63, 70, 68.

heart: 102, 95, 98, 110.

lung: 112, 115, 113, 109, 95, 98, 100. 

Write a program that determines and prints the following information for every of the tissues:

a)  number of measurements

b)  average enzyme activity

c)  variance

d)  standard deviation 

Write a subroutine for every piece of information above (i.e. a subroutine that finds the number of measurements and returns it, a sub that search the average and returns it, a such that finds the variance...etc.). The major part of your program should call the subroutines for every data set (brain, heart and lung) and print out the results to the screen.