Question: Suppose X has a normal distribution with mean -1.3 and standard deviation 5/4. The pnorm(), dnorm() and qnorm() functions should be useful in the following.

Suppose X has a normal distribution with mean -1.3 and standard deviation 5/4. The pnorm(), dnorm() and qnorm() functions should be useful in the following. a) What is the expected value of 2X + 9? b) What is the variance of 2X + 9? c) Calculate the probability X > 0 d) Calculate the probability that X t = .421 then what is t? g) Copy your R script for the above into the text box here

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