the mean of 14 observations was 160 it was detected one recharging the value 165 was wrongly copied as 125 for computation of men find correct mean
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Answered by
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mean = sum of all observations/total number of observations
mean given 160
so,
sum of all observations/ 14 =160
sum of all observations =160 ×14
sum of all observations =2240
we have find out sum of all observations now
as value of 165 as copied as 125
so ,
165 -125=40
now correct sum of observations is 2240+40=
2280
now applying mean formula we get
2280/14 = approximately 163
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mean given 160
so,
sum of all observations/ 14 =160
sum of all observations =160 ×14
sum of all observations =2240
we have find out sum of all observations now
as value of 165 as copied as 125
so ,
165 -125=40
now correct sum of observations is 2240+40=
2280
now applying mean formula we get
2280/14 = approximately 163
MARK AS BRAIN LIST PLZ
Sukhveerkaur:
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can you mark as brainlist plz
but this question is not written by me so how i can
what I think it was written by you
you ask to priyanshu the question is written by him
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hey guys why r u chatting here
I m getting notifucations please can u stop it
why your chatting in my mobile
you all are mad
Answered by
4
Hey mate here is yuor answer:
Mean =Sum/no. of observations.
so,160=sum/14.
sum=160×14=2240.
Now 165 was copied as 125 so the real sum is 2240+165-125=2280.
Now the mean is 2280/14=162.75
Hope it helps you ♡♡
Mean =Sum/no. of observations.
so,160=sum/14.
sum=160×14=2240.
Now 165 was copied as 125 so the real sum is 2240+165-125=2280.
Now the mean is 2280/14=162.75
Hope it helps you ♡♡
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