Question

The mean of 10 observations is 15. If one obervation 15 is added then what is the new mean

Answer 1

Answer:

here your answer

Step-by-step explanation:

atq

the mean of 10 observations is 15

sum of total observations 10×15=150

and

one new observation is adding

so

the sum of new total observations

150+15=165

no.of new observations is 10+1=11

mean=sum of total observations/no.of observations

=165/11=15