The mean of the data set comprising of 16 observation is 16. If one of the observation valued 16 is deleted and three new observations 3, 4, & 5 are added to the data. Then the mean of resultant data is  (1)`16.8`(2) ` 16.0`(3)`15.8` (4)`14.0`

The mean of the data set comprising of 16 observations is 16. If one of the observation valued 16 is deleted and three new observations valued 3, 4 and 5 are added to the data, then the mean of the resultant data, is : (1) 16.8 (2) 16.0 (3) 15.8 (4) 14.0

The mean and variance of a data set comprising 15 observations are 15 and 5 respectively. If one of the observation 15 is deleted and two new observations 6 and 8 are added to the data, then the new variance of resulting data is

The mean of 16 observations is 16 . If one observation 16 is deleted and three observations 5 , 5 and 6 are included , then find the mean of the final observations .

The means of 5 observations is 16. Find the sum of these observations.

The mean of 10 observations is 15. If one observation 15 is added, then the new mean is 16 (b) 11 10 (d) 15

The mean of a data is 15 and the sum of the observations is 195. The number of observations is 13 (b) 19 16 (d) 17