Question

8. Find the median and mode of the following frequency distribution. (3)
CI 0-10 10-20 20-30 30-40 40-50
F 6 9 15 12 8

Answer 1

Answer:

SOLUTION IS IN THE ATTACHMENT.

Median:

Median is that value of the given observation which divides it into exactly two parts.

MEDIAN for the GROUPED data :

For this we find the Cumulative frequency(cf) of all the classes and n/2, where n = number of observations.

Now find the class whose Cumulative frequency is greater than and nearest to n/2 and this class is called median class,then use the following formula calculating the median.

MEDIAN = 1 + [(n/2 - cf )/f] xh

Answer 2

Answer is in the attachment Hope it helps ♡♡

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