Chapter 7.4, Problem 19E

To determine

To find:

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

Answer to Problem 19E

Aerobic exercise = $52\%\left(0.52\right)$ ,An Aerobic exercise = $30\%\left(0.30\right)$

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

	Aerobic	Anaerobic	Total
Man	$\frac{88}{350}\approx 0.25$	$\frac{104}{350}\approx 0.30$	$0.55$
Female	$\frac{96}{350}\approx 0.27$	$\frac{62}{350}\approx 0.18$	$0.45$
Total	$0.52$	$0.48$	$1$

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

Aerobic exercise = $52\%\left(0.52\right)$

An Aerobic exercise = $30\%\left(0.30\right)$