Question: Suppose X is a random variable with with expected value= 1.31 and standard deviation= 0.85. Let X 1 , X 2 , ... , X

Suppose X is a random variable with with expected value= 1.31 and standard deviation= 0.85.

LetX1,X2, ... ,X81

be a random sample of 81 observations from the distribution of X.

LetXbe the sample mean. Use R to determine the following:

a) Find the approximate probability P(X>1.35)

b) What is the approximate probability thatX1+X2+ ... +X81>120

c) Copy your R script for the above into the text box here.

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