Question

How to find median,mode ,
in detail

Answer 1

Median means first we have find cumulative frequency table (cf). Then, position of median (N+1)/2
Then corresponding of position of median is median.
Mode means the highest frequency.
I hope it will help you.
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Answer 2

Mean:- It is found by adding all the value of observations and dividing it by the total number of observations. It is denoted by $\bar{x}$

So, $\bar{x}$ = $<b>follow 1st attachment</b>$

$<b>Median:-</b>$ It is the value of the middle most observation (s).

$<b>follow 2nd attachment</b>$

median = $l + ( \frac{ \frac{n}{2} - cf}{f} ) \times h$