Question

Text Message Usage by Age Group and Daily Message Volume
Number of Text Messages
0–200 201–500 Over 500
Age 12–15 24 47 78
16–19 20 35 97
20–23 55 67 177
Given the data in the table about the number of text messages per day, what is the relative frequency of the people age 12–15 who had over 500 messages? Round the percentage to the nearest tenth.

Answer 1

Relative frequency = 78 / (24 + 47 + 78) = 78 / 149 ≈ 0.5235 = 52.3% (rounded to the nearest tenth).