Question

If the mean of 15 observations is 22. one observation was taken as -12 instead of 12. Find the correct mean.​

Answer 1

Answer:

mo

- 13.20

9. the mean of 15 observations is 22 and median is 15. if 5 is added

to each observation, what are the values of new mean and median?

ans. : 27, 20

please vote for me.