Hello, i need help solving this, preferably on paper.

7. The heights, in inches, of the starting players on a men's basketball team are in the following table Player A B C D E Height 76 78 78 81 86 a) Determine the population mean () b) Find the sample mean (u x bar : the mean of the sample mean) of the variable xbar for a sample of size 2 c) Determine the population standard deviation o d) Determine the standard deviation o bar, of the variable xbar for the sample size of 2, indicate any apparent relationship between o xbar and o 8. A variable of a population mean of =35 and standard deviation of o=42 If the variable normally distributed, identify the sampling distribution of the sample mean of sample size 9