Question

mean of 10 observations was found to be 20 later on it was detected that an observation 15 was misread as 10 the correct mean of the observation is​

Answer 1

Answer:

20.5

15-10=5

so you will have to divide x by 10 which will leave a reminder 5.

Answer 2

Step-by-step explanation:

mean of 10 observation is equal to20

mean of 15 observation is equal to 15 - 10 is equal to 5then X divide by 10that Give reminder 5 answer will be 20 answer will be 20.5