Question

Following table gives the age of husbands and wives

Age of wives (in years)	Age of husbands (in years)
	20-30	30-40	40-50	50-60
15-25	5	9	3	—
25-35	—	10	25	2
35-45	—	1	12	2
45-55	—	—	4	16
55-65	—	—	—	4

Find:

(a)The marginal frequency distribution of the age of husbands.

(b)The conditional distribution of the age of husbands when the age of wives lies between 25 - 35

Answer 1

Age of wives (in years)	Age of husbands (in years)
	20-30	30-40	40-50	50-60	Total
15-25	5	9	3	—	17
25-35	—	10	25	2	37
35-45	—	1	12	2	15
45-55	—	—	4	16	20
55-65	—	—	—	4	4
Total	5	20	44	24	93

(a) The marginal frequency distribution of the age of husbands.

Age of husbands	20-30	30-40	40-50	50-60	Total
Frequency	5	20	44	24	93

(b) The conditional distribution of the age of  husbands when the age of wives lies between 25 - 35.

Age of husbands	20-30	30-40	40-50	50-60	Total
Frequency	___	10	25	2	37