Question

The mean of 5 observations is 20. If 2 is subtracted from each observation ,then the mean of the new set of data is
very very urgent please answer it

Answer 1

Answer:

5x20 = loo

loo-5x2=90

90/5=18

Answer 2

Answer:

18

Step-by-step explanation:

Mean- 20

Number of observation - 5

First we gave to have to find the total no.of observation

20×5=100

NOW

Number of observation in new data set is 100-10 = 90

MEAN OF NEW DATA SET IS 90/5= 18

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