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X 8 10 12 16 18 20 24
F 2 1 4 3 3 1 6

From the table, Calculate the median___________

A.

24.0

B.

17.0

C.

18

D.

16

Correct answer is D

When a group data is involved, cumulative frequency is used. The formula will be:

Median=[(N+1)/2]th

For member of odd number items. That is, where N is odd

Median=([N/2[N/2+1]th)/2

For member of odd number items. That is, where N is odd

Solution:

X 8 10 12 16 18 20 24
F 2 1 4 3 3 1 6
Cumulative Frequency 2 3 7 10 13 14 20

 

When a group data is involved, cumulative frequency is used. The formula will be:

Median=[(N+1)/2]th

For member of odd number items. That is, where N is odd

Median=([N/2[N/2+1]th)/2

For member of odd number items. That is, where N is odd



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