Question

Suppose X is a random variable with with expected value -0.01 and standard deviation σ =...

Suppose X is a random variable with with expected value -0.01 and standard deviation σ = 0.04.
Let

X1, X2, ... ,X81

be a random sample of 81 observations from the distribution of X.
Let X be the sample mean. Use R to determine the following:
Copy your R script

b) What is the approximate probability that

X1 + X2 + ... +X81 >−0.02?

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