ables ureau 6.2 Ages of College Students. Here is a two-way table of U.S. Census

Question

ables ureau 6.2 Ages of College Students. Here is a two-way table of U.S. Census Bu table entries are counts in thousands of students. AGES Female Male 1905 3897 1791 1036 data describing the age and sex of all American students enrolled in college. The Age Group 15 to 19 years 20 to 24 years 25 to 34 years 35 years or older 2366 4198 2197 1784 (a) How many college students are there? (b) Find the marginal distribution of age group. What percent of undergraduates are in the 20 to 24-year-old college age group?

Explanation / Answer

a) Calculating the total count of each age group and overall count, we get the following table

Thus, there are total of 19174 college students

b) To find marginal distribution, we need to divide all values by total count which is 19174, we get

Thus, from table we get, Percentage of students in 20-24 = 0.422186*100% = 42.22%

Age Group Female Male Total 15-19 2366 1905 4271 20-24 4198 3897 8095 25-34 2197 1791 3988 35 and above 1784 1036 2820 Total 10545 8629 19174

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