Chapter 1.1, Problem 22E

To determine

To calculate: the three conditional distribution of students smoking behaviour and describe and the relationship between the smoking behaviour of students and their parents

Answer to Problem 22E

Parents who do not smoke have comparatively the highest percentage of students who not smoke and parents who some have the comparatively highest percentage of students who smoke.

Explanation of Solution

Given:

  

Calculation:

Conditional distribution of students smoking behaviour for ‘Neither Parent Smoke’ is below:

Conditional Distribution of students smoking behaviour for parents smoking behaviour
Students Smoking Behaviour	Neither Parent Smoke
	Total No.	Percentage
Student does not smoke	1168	$\frac{1168}{1356}\times 100$	86.1
Student smokes	188	$\frac{188}{1356}\times 100$	13.9
Total	1356

Conditional distribution of students smoking behaviour for ‘one parent smoke’ is below:

Conditional Distribution of students smoking behaviour for parents smoking behaviour
Students Smoking Behaviour	One Parent Smoke
	Total No.	Percentage
Student does not smoke	1823	$\frac{1823}{2329}\times 100$	81.4
Student smokes	416	$\frac{416}{2329}\times 100$	18.6
Total	2239		100

Conditional distribution of students smoking behaviour for ‘both parents smoke’ is below:

Conditional Distribution of students smoking behaviour for parents smoking behaviour
Students Smoking Behaviour	Both Parent Smoke
	Total No.	Percentage
Student does not smoke	1380	$\frac{1380}{1780}\times 100$	77.5
Student smokes	400	$\frac{400}{1780}\times 100$	22.5
Total	1780		100

From the above table of conditional distribution students smoking behaviour for parents smoking behaviour we conclude that parents who do not smoke (neither parent smoke) have comparatively the highest percentage of students who not smoke and parents who some (both parents smoke) have the comparatively highest percentage of students who smoke.

Conclusion:

Hence, that parents who do not smoke (neither parent smoke) have comparatively the highest percentage of students who not smoke and parents who some (both parents smoke) have the comparatively highest percentage of students who smoke.