Question

If the mean of 50 observations is 100 At the

time of Computation two items are wrongly

taken as 23 and 53 instead of 32 and 35 then

correct mean_____​

Answer 1

Answer:

51

Step-by-step explanation:

Mean of 100 observation =50

∴Total of 100 observation=100×50=5000

If one of the observation 50 is replaced by 150 than total of new observation is=5000−50+150=5100

Hence the mean of new 100 observation=

100

5100

=51