A frequency distribution is given below
Class inteval : 0-8, 8-16, 16-24, 24-32, 32-40
Frequency : 15, 7, 18, 10, 6
Answer the following :
i) Write the class markof each class
ii) Write the cumalative frequencies of the given frequencies
Answers
Answer: (i)
Class Interval Frequency (fi) class mark (Xi)
0 - 8 15 4
8 - 16 7 12
16 - 24 18 20
24 - 32 10 28
32 - 40 6 36
Class Interval Frequency (fi) Cumulative frequency
0 - 8 15 15
8 - 16 7 22
16 - 24 18 40
24 - 32 10 50
32 - 40 6 56
n=56