Question

Mean of eight observations is 25. If one observation 11 is excluded, find the mean of
the remaining​

Answer 1

Answer:

so the mean of the remaining 7 observations= 27

Step-by-step explanation:

Mean of eight observations is 25

sum of 8 observations/8= 25

sum of 8 observations= 25×8

sum of 8 observations= 200

If one observation 11 is excluded,

sum of remaining 7 observations= 200-11

= 189

the new mean of the remaining7 observations= 189/7

=27

so the mean of the remaining 7 observations= 27