Question

The mean of 25 observed is 16.if 4 is added to first 10 obstetric new mean is

Answer 1

Answer:

Mean of 25 observations =16

Sum of 25 observations =25×16=400

After adding 4 to first 10 observations, new sum = 400+4×10=440

Thus, new mean =

25

440

=17.6

Step-by-step explanation:

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