According to a recent Current Population Reports, the population distribution of number of years of education for

Question:

According to a recent Current Population Reports, the population of number of years of education for self-employed individuals in the United States has a mean of 13.6 and a standard deviation of 3.0.
a. Identify the random variable X whose population is described here.
b. Find the mean and standard deviation of the sampling of for a random sample of size 100. Interpret the results.
c. Repeat part b for n = 400. Describe the effect of increasing n.
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...