Algebra-1

First, we find the cumulative frequencies.

For 4 - 5, it is 3.

For 6 - 7, it is 3 + 8 = 11.

For 8 - 9, it is 11 + 12 = 23.

For 10 - 11, it is 23 + 5 = 28.

The total number of students is 28.

The median is the (n + 1) / 2 th value, where n is the total num...