The National Longitudinal Study of Adolescent Health interviewed several thousan

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 Almost no chance Some chance but probably not A 50-50 chance A good chance Almost certain Female Male 108 168 464532 126 137 736 694 765 a. How many individuals are described in this table? b. How many females were among the respondents? c. The percent of females among the respondents was about d. Your percent from the previous exercise is part of the marginal distribution of opinion about marriage the marginal distribution of sex the conditional distribution of sex among adolescents with a given opanion e. What percent of females thought that they were almost certain to be married in the next 10 years? 4a) 7/24/201 TOSHIBA DEL BACK SPACE 0

Explanation / Answer

a) The number of individuals that are described in this table

= 126 + 137 + 464 + 736 + 1176 + 108 + 168 + 532 + 694 + 765

= 4906

b) The number of females among the respondents

= 108 + 168 + 532 + 694 + 765

= 2267

c) The percent of females among the respondents = 2267*100/4906 = 46.2087%

d) the marginal distribution of sex

e) 1176 * 100 / 2267 = 46.2087%

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