Math, asked by santoshimishra359, 2 months ago

14. Find the average of the
following:
2 /10 , 3/10 ,5/10​

Answers

Answered by tusharagarwalpro
1

Answer:

op bolte mast quiting o answer

Answered by mathsok
0

Answer:

The given numbers are:

\dfrac{2}{10} ,\dfrac{5}{10},\dfrac{6}{10},\dfrac{7}{10}

10

2

,

10

5

,

10

6

,

10

7

and \dfrac{8}{10}

10

8

Here, number of observations = 5

To find, the average of \dfrac{2}{10} ,\dfrac{5}{10},\dfrac{6}{10},\dfrac{7}{10}

10

2

,

10

5

,

10

6

,

10

7

and \dfrac{8}{10}

10

8

= ?

We know that,

Average = \dfrac{Sum of observations}{Numbers of observations}

Numbersofobservations

Sumofobservations

= \dfrac{1}{5}(\dfrac{2}{10}+\dfrac{5}{10}+\dfrac{6}{10}+\dfrac{7}{10}+\dfrac{8}{10})

5

1

(

10

2

+

10

5

+

10

6

+

10

7

+

10

8

)

= \dfrac{1}{5}(\dfrac{2+5+6+7+8}{10})

5

1

(

10

2+5+6+7+8

)

= \dfrac{1}{5}(\dfrac{2+5+6+7+8}{10})

5

1

(

10

2+5+6+7+8

)

= \dfrac{28}{50}

50

28

Didiving numerator and denominator by 2, we get

= \dfrac{\dfrac{28}{2} }{\dfrac{50}{2}}

2

50

2

28

= \dfrac{14}{25}

25

14

∴ The average of \dfrac{2}{10} ,\dfrac{5}{10},\dfrac{6}{10},\dfrac{7}{10}

10

2

,

10

5

,

10

6

,

10

7

and \dfrac{8}{10}

10

8

= \dfrac{14}{25}

25

14

Thus, the average of \dfrac{2}{10} ,\dfrac{5}{10},\dfrac{6}{10},\dfrac{7}{10}

10

2

,

10

5

,

10

6

,

10

7

and \dfrac{8}{10}

10

8

is equal to \dfrac{14}{25}

25

14

.

Similar questions