4. The mean of 8 observations is 73. What is the mean of the new observations obtained by
adding 2 to each of the observation?
(A) 75
(B) 74
(C73
(D) 72
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Answer:
Option(A) 75
Step-by-step explanation:
The mean of 8 observations = 73
Sum =8*73=584
Now 2 is added to each of 8 of observations
This sum=8*2=16
Total sum=584+16=600
Thus new mean= Total sum /8
=600/8=75
Thus new mean=75
Option(A) 75
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