How will I know the modal class from a grouped data w/ equal class sizes if the highest frequency is 7 but then it appears thrice in 3 intervals.



34.00 - 39.69 frequency: 7
39.70- 45.39 frequency: 7
62.50-68.19 frequency: 7

With your data, the distribution is bimodal, with one mode occurring in the 34-45.39 interval and the other in 62.5-68.19.

To determine the modal class from a grouped data with equal class sizes, you need to identify the class interval that has the highest frequency. In this case, the highest frequency is 7, which appears in three different class intervals.

To find the modal class, compare the frequencies of the intervals and look for the class interval with the highest frequency. In your given data, all three intervals have the same frequency of 7. However, to have a single modal class, you need one interval with the highest frequency.

Since there are multiple intervals with the same highest frequency, you can consider all three intervals as the modal class. In this case, the modal class consists of the intervals:
- 34.00 - 39.69
- 39.70 - 45.39
- 62.50 - 68.19

All three intervals have a frequency of 7, making them the modal class in this grouped data.