Question

find mean,mode , median of 12,10,12,30,10,3,5,10,20​

Answer 1

Answer:

mode is 10

median is 10

Step-by-step explanation:

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Answer 2

Given :

• A Data 12,10,12,30,10,3,5,10,20.

To Find :

• Mean , Mode and Median of the given data.

Solution :

For Mean :

Using Formula :

$\longmapsto\tt\boxed{Mode=\frac{Sum\:of\:all\:Observations}{Total\:no.\:of\:Observations}}$

Putting Values :

$\longmapsto\tt{\dfrac{12+10+12+30+10+3+5+10+20}{9}}$

$\longmapsto\tt{\cancel\dfrac{112}{9}}$

$\longmapsto\tt\bf{12.4}$

So , The Mean of the given data is 12.4 ..

• 10 is mode of the given data because it occurs for the maximum times..

Now ,

For Median :

Firstly we will arrange the data in ascending order :

= 3,5,10,10,10,12,12,20,30

Using Formula :

$\longmapsto\tt\boxed{Median=\bigg(\dfrac{n+1}{2}\bigg)^{th}}$

Putting Values :

$\longmapsto\tt{\bigg(\dfrac{9+1}{2}\bigg)^{th}}$

$\longmapsto\tt{\bigg(\cancel\dfrac{10}{2}\bigg)^{th}}$

$\longmapsto\tt\bf{5th\:Term}$

So , The Median of the data is 10..

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Mean :

Mean of a observation is the sum of values of all the observations divided by the total no. of observations.

Mode :

The observation that occurs for the maximum time.

Median :

The central value that occurs in the centre when we arrange the data in ascending order.

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