Question

the meaning of 8 observations is 25 if one observation 11is excluded find the mean of the remaining observation

Answer 1

Answer:

Step-by-step explanamean = sum of all observations / total number of observations (let x be the sum of all observations )

and

total observations=8 ,

mean = 25

one observation = 11

now ,

x/8 = 25

x=25×8

x=200

now ,

new mean =( 200–11) / 7

=189/7

=27... ans