Question

if 12 is the mean of 10 observations and 10 is added to each observation, then the new mean is:
(A) 120
(B) 13
(C) 24
(D) 22​

Answer 1

Answer:

(D) 22

Step-by-step explanation:

sum of 12 observation = 12 x10 = 120

10 is added to each total addition = 10 x 10 = 100

new mean = total / no. of observation = (120 + 100 ) / 100 = 22

Answer 2

Answer:

answer is 22

Step-by-step explanation:

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