The mean of 40 observations was 160. It was detected on rechecking that the value of 165 was wrongly copied as 125 for computation of mean. Find the correct mean.

The mean of 40 observation was 160. It was detected on re-checking that the value 165 wrongly copied as 125 for computation of mean. Find correct mean.

The mean of 40 observation was 160. It was detected on re-checking that the value 165 wrongly copied as 125 for computation of mean.Find correct mean.

The mean of 30 values was 150. It was detected on rechecking that one value 165 was wrongly copied as 135 for the computation of the mean. Find the correct mean.

The mean of 30 values was 150. It was detected on rechecking that one value 165 was wrongly copied as 135 for the computation of the mean. Find the correct mean. A)151 B)149 C)152 D)None of these

The mean of 40 observations was 160. It was detected that the value of 165 was wrongly copied as 125. Find the correct mean.

The mean of 10 observations was calculated as 40. It was detected on rechecking that the value of 45 was wrongly copied as 15. Find the correct mean.

The average height of 30 boys was calculated to be 150 cm. it was detected later that one value of 165 cm was wrongly copied as 135 cm for the computations of the mean. Find the correct mean.

The mean of 25 observations is 72. It was detected that one observation 53 was wrongly copied as 78. Find the correct mean.

The mean of 25 observations is 72. It was detected that one observation 53 was wrongly copied as 78. Find the correct mean.

A student obtained the mean and standard deviation of 100 observations as 40 and 5.1 respectively . It was later found that one observation was wrongly copied as 50, the correct figure being 40. Find the correct mean and S.D.