Question

The mean of 100 observations is 50. If one of the observations which was 50 is replaced
by 40, the resulting mean will be
a)50
b)49.90
c) 70
d) 40​

Answer 1

Answer:

If one of the observation which was 50 is replaced by 150, the resulting mean willbe. Solution : Given, mean of 100 observation is 50. Hence, the resulting mean is 51.

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