Question

find mean median mode if frequency is 8,16,36,34,6 and class inter 0-10,10-20-,30-40,40-50​

Answer 1

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Answer 2

Answer:

Step-by-step explanation:

In Mean,

First make a table to show this data:

Class Interval class mark frequency

_____________________________

0-10 10/10*5=5 8

10-5=5

_____________________________

10-20 20-5=15 16

_____________________________

20-30 30-5=25 36

_____________________________

30-40 40-5=35 34

_____________________________

40-50 50-5=45 6

-------------------------------------------------------

Now take, class mark as x i

frequency as f i

Then take sum of fi then multiply xi and fi

Then,

Make sum total of fi and xifi

Then,

Put the value of fi and xifi in below equation

_ n

X= sigma xifi

i=0

--------------

n

sigma fi

i=0

Then you find mean.

In Mode,

Now arrange the data in ascending order,

6,8,16,34,36

So every obeservation have frequency 1

So, no mode

In Median,

We have arranged data,

6,8,16,34,36

n=5 (it's a odd)

So,

Median= (n+1/2)th term

= 5+1/2

= 6/2=3th term

Now, the median is 16

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