Question

mean of hundred number found to be 50 but later on it was observed that one of the number 150 was wrongly taken 15 the correct mean is​

Answer 1

Answer:

hi

Step-by-step explanation:

We know that,

_____________________________

Mean

=( sum of the observations )/( number

of observations )

____________________________

According to the given problem ,

i )Sum of the 100 observations/ 100

= mean

Sum of the 100 observations

= 50× 100

= 5000 ------( 1 )

ii ) if one of the observation 50

replaced by 150

New Sum of the 100 observations

= 5000 - 50 + 150 [ from ( 1 ) ]

= 5100 ---( 2 )

New mean = ( 2 )/ 100

= 5100/ 100

= 51

I hope this helps you.

***

Answer 2

Answer:

But later on, it was observed that one of the number 150 was wrongly taken as 50. The correct mean is: 100

Step-by-step explanation:

I hope this might help u.