Given below is a cumulative frequency distribution showing the ma… - Vidyadip

Question

Given below is a cumulative frequency distribution showing the marks secured by 50 students of a class:

Marks	Below 20	Below 40	Below 60	Below 80	Below 100
Number of students	17	22	29	37	50

Form the frequency distribution table for the data.

✓

Answer

Here, we observe that, 17 students have scored marks below 20 i.e., it lies between class interval 0-20 and 22 students have scored marks below 40, so 22 - 17 = 5 students lies in the class interval 20-40 continuing in the same manner, we get the complete frequency distribution table for given data.

Marks	Number of students
0-20 20-40 40-60 60-80 80-100	17 22 - 17 = 5 29 - 22 = 7 37 - 29 = 8 50 - 37 = 13

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