Given the data in the table about the number of text messages per day, what is the relative frequency of the people age 12 to 15 who have over 500 messages

To find the relative frequency of people aged 12 to 15 who have over 500 messages, we need to consider the total number of people in this age group and the number of people who have over 500 messages.

From the table, we can see there are 15 people in the 12-15 age group and 4 of them have over 500 messages.

Relative Frequency = Number of people with over 500 messages / Total number of people in the age group
Relative Frequency = 4 / 15
Relative Frequency = 0.2667 or 26.67%

Therefore, the relative frequency of people aged 12 to 15 who have over 500 messages is 26.67%.