Chapter 7.4, Problem 20E

To determine

To find:

Thejoint and marginal relative frequencies of the given two-way table.

Answer to Problem 20E

The sandwich are turkey on white bread $=34\%\left(0.34\right)$

Explanation of Solution

Given:

Each entry in a two −way table

Concept used:

Bivariate joint frequency distribution are contingency table.

The total row and total column of the marginal distribution while the body of the table is the joint frequencies

Calculation:

Draw the table

	Turkey	Ham	Total
White	$\frac{452}{1348}\approx 0.34$	$\frac{146}{1348}\approx 0.11$	$0.45$
Wheat	$\frac{96}{350}\approx 0.27$	$\frac{422}{1348}\approx 0.31$	$0.55$
Total	$0.58$	$0.42$	$1$

The total row and total column of the marginal distribution while the body of the table is the joint frequencies equal to be $1$

Each entry in a two-way table is called a joint frequency

The sandwich are on wheat bread $=55\%\left(0.55\right)$

The sandwich are turkey on white bread $=34\%\left(0.34\right)$