91影视

Given in the question that, the size of a house hold items in government data.

We have to make the histograms suitable for comparing the probability distributions of $X$and $Y$.

The histograms for the size of American households for the following types of households:

The histograms for Family Size in American Households as:

Because the top bar is to the left and the tail is to the right, both distributions are right-skewed. Because the tallest bars are at $2$, the center of both distributions is around two people. Both histograms have nearly the same spread.

The most notable difference in the histograms is that no American families with only one person exist, whereas American households with only one member do exist.

Given in the question that, the table which shows the size of American households In government data. From the information we have to find the mean for each random variable.

We can compute the value of the mean for household by using the Ti-83 calculator as follow

Calculate the value of the mean for family using the Ti-83 calculator as follows:

Given in the question that, the size of American households In government data.

We have to determine the standard deviations of both $X$and $Y$.

Compute the standard deviations for both distributions with the Ti-83 calculator as follows: