Question

The histogram shows the ages of people in a community chorus.


How many people in the chorus are younger than 40 years old?



Enter your answer in the box.

people
Histogram titled Ages of Members of the community chorus. The vertical axis is labeled Frequency and ranges from 0 to 18 in increments of 2. The horizontal axis is titled Age. For 0 to 9, the bar height is 0. For 10 to 19, the bar height is 4. For 20 to 29, the bar height is 12. For 30 to 39, the bar height is 15. For 40 to 49, the bar height is 14. For 50 to 59, the bar height is 8. For 60 to 69, the bar height is 4. For 70 to 79, the bar height is 1.

Answer 1

To find the number of people in the chorus who are younger than 40 years old, we need to add the frequencies of the age groups that are below 40.

From the histogram:

- For the age group 10 to 19, the frequency is 4.
- For the age group 20 to 29, the frequency is 12.
- For the age group 30 to 39, the frequency is 15.

Now, we add these frequencies together:

\[
4 \text{ (10 to 19)} + 12 \text{ (20 to 29)} + 15 \text{ (30 to 39)} = 31
\]

Therefore, the number of people in the chorus who are younger than 40 years old is **31**.