Use the table to answer the question.

Question

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

To find the relative frequency of people age 12–15 who had over 500 messages, we need to divide the number of people in that category (78) by the total number of people in the 12-15 age group (24 + 47 + 78 = 149).

Relative Frequency = 78 / 149 ≈ 0.5235

Converting this to a percentage, we get:

Relative Frequency = 52.4%

Therefore, the relative frequency of people age 12–15 who had over 500 messages is 52.4%.