rite an R function called myrexp that generates a realization of X$1,...,$ Xn$.$

Only calls to R$$s standard uniform generator runif are permitted, e$.$g$.$ calling rexp is

not allowed.

This function should have two arguments:

$$ n$,$ the random sample size

$$ mu$,$ the user$-$specified mean of the exponential distribution

This function should return a vector of n entries with the generated realization of

X$1,...,$ Xn