Question

Researchers once surveyed college students on their Face book use. The following two-way table displays data for the sample of students who responded to the survey.

How many students in the survey were in the age category of 18 to 22?
_____ students.

Answer 1

95.1%

Explanation:

Age Group 18 to 22 = Uses FB = 78/4 Does not use FB = 95.1 rounded to the nearest tenth.

Correct on Khan

Answer 2

The number of students in the survey in the age category of 18 to 22 is 78 students.

This can be seen by adding up the number of students in the "Uses Fb" and "Does not use Fb" columns for the 18 to 22 age category:

Uses Fb | Does not use Fb

78 4

Total: 78 + 4 = 82 students

Therefore, there are 78 students in the survey in the age category of 18 to 22.