Question

the mean of 7 numbers is 25. If one more number is included, mean of the new set of number becomes 27. Find the included number.​

Answer 1

Step-by-step explanation:

Mean =X = 25

No of observations = 7

Sum of observations = = 25 x 7 = 175

Let the included number be x

New Mean X' = 27

New number of observations = 8

New sum of observations = 27x 8

= 216 which is equal to 175x

Thus x= 216-175 = 41

Answer 2

Step-by-step explanation:

Please mark me as a brainlist