In April 2013, Eddie (“Flathead Ed”) Wilcoxson caught a flathead catfish that weighed 76.52 pounds on Bartlett Lake in Arizona.5 The catfish was 53.5 inches long and its girth measured 34.75 inches....

In April 2013, Eddie (“Flathead Ed”) Wilcoxson caught a flathead catfish that weighed 76.52 pounds on Bartlett Lake in Arizona.5 The catfish was 53.5 inches long and its girth measured 34.75 inches. Suppose five catfish were caught on the same lake with weights (in pounds) given in the following table.

A random sample of three of these catfish is selected without replacement.

a. Find the sampling distribution of the sample mean X .

b. Find the sampling distribution of the total length for all three catfish, T.

The number of copies sold (in millions) for the all-time best-selling children’s books are given in the table below.

Suppose two of these books are selected at random without replacement.

 a. Find the sampling distribution of the sample mean.

b. Find the sampling distribution of the total number of books sold.