Use the DEF FNF(X) command in BASIC to evaluate the pdf of the average of 20 exponential random variables with A= 1. Print the values for X = (k - 1)/20 for k = 1, 2, ... ' 41. Plot a graph of this...

Use the DEF FNF(X) command in BASIC to evaluate the pdf of the

average of 20 exponential random variables with A= 1. Print

the values for X = (k - 1)/20 for k = 1, 2, ... ' 41. Plot a

graph of this function. What general shape does the curve have?