Question

Find the value of A, B, C and in the below data table.

• A. A = 9
• B. C = 22
• C. B = 8
• D. D = 58

Answer 1

Answer: (A), (C), (D)

The correct options are
A A = 9
C B = 8
D D = 58

Cumulative frequency is sum of all the previous frequencies.
So, A = 9

For C,
9 + 12 = C
C = 21

For B,
C + B = 29
21 + B = 29 $\therefore$ C = 21
B = 29 - 21
B = 8

For D,
54 + 4 = D
D = 58
Thus, A = 9, B = 8, C = 21 and D = 58.