Question

The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender:

Opinion	Female	Male
Almost no chance	103	88
Some chance but probably not	146	178
A 52/50 chance	458	508
A good chance	750	723
Almost certain	1154	757

1. How many individuals are described in this table?
2. How many females were among the respondents?
3. The percent of females among the respondents was about %.
4. Your percent from the previous exercise is part of:

• the marginal distribution of sex.
• the marginal distribution of opinion about marriage.
• the conditional distribution of sex among adolescents with a given opinion.

5. What percent of females thought that they were almost certain to be married in the next 10 years?
6. Your percent from the previous exercise is part of:

• the marginal distribution of opinion about marriage.
• the conditional distribution of opinion about marriage among women.
• the conditional distribution of sex among those who thought they were almost certain to be married distribution of sex among those who thought they were almost certain to be married

Answer 1

From the above-given table, we have

Opinion	Female	Male	Total
Almost no chance	103	88	191
Some chance but probably not	146	178	324
A 52/50 chance	458	508	966
A good chance	750	723	1473
Almost certain	1154	757	1911
Total	2611 =total females	2254 = total males	4865 =total individuals

A. How many individuals are described in this table?

Answer: From the table given above the total individuals are 2611+2254 =4865

(or 191+324+966+1473+1911 = 4865)

B. How many females were among the respondents?

Answer: Number of female respondents = 2611

C. The percent of females among the respondents was about %.

Answer: Percent of females among the respondents

  

   

D. Your percent from the previous exercise is part of:

Answer: the marginal distribution of sex.

The percent of females among the respondents representing the maginal distribution of sex(female)

E. What percent of females thought that they were almost certain to be married in the next 10 years?

Percent of females thought that they were almost certain to be married in the next 10 years

F. Your percent from the previous exercise is part of:

Answer: the marginal distribution of opinion about marriage.

Percent of females thought that they were almost certain to be married in the next 10 years is representing the marginal distribution of almost certain opinion about marriage.