To determine which interval will have the highest bar on the histogram, we need to look at the frequency of each age group.
Based on the data provided:
- Less than 18: 26
- 18-24: 90
- 25-34: 56
- 35-44: 55
- 45-54: 32
- 55-64: 29
- 65 and over: 11
The interval with the highest frequency is 18-24, with a frequency of 90.
Therefore, the correct response is:
18-24