Question

A frequency table of grades has five classes (A, B, C, D, and F) with frequencies of 5, 13, 16, 8, and 1 respectively what are the corresponding cumulative frequencies of the five classes?

Answer 1

To find the cumulative frequencies of the five classes (A, B, C, D, and F), you simply add up the frequencies from the top class to the bottom. In this case, you start with the highest class (A) and work your way down to the lowest class (F):

1. For class A (frequency = 5)

2. For class B (frequency = 13 + 5 = 18)

3. For class C (frequency = 16 + 18 = 34)

4. For class D (frequency = 8 + 34 = 42)

5. For class F (frequency = 1 + 42 = 43)

So, the corresponding cumulative frequencies for the five classes are:

A: 5

B: 18

C: 34

D: 42

F: 43