To calculate the relative frequency, we need to first find the total number of people in the age group 12-15 who had over 500 text messages. From the table, we see that there were 78 people age 12-15 in total, and 47 who had between 201-500 messages and 78 who had over 500 messages.
Relative Frequency = Number of people with over 500 messages / Total number of people in age group 12-15
Relative Frequency = 78 / 78
Relative Frequency = 1
To convert this to a percentage, we multiply by 100:
Relative Frequency = 1 * 100 = 100%
Therefore, the relative frequency of people age 12-15 who had over 500 text messages is 100%.
Use the table to answer the 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.
1 answer