Question

Out if 25 numbers the mean of 15number is 36 and the mean of remauning number is 26 find the nean of all 25 munbers

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11th

Economics

Measures of Central Tendency

Arithmetic Mean in Statistics

Out of 25 numbers, the mean...

STATISTICS

Out of 25 numbers, the mean of 15 numbers is 36 and the mean of the remaining number is 26; find the mean of all the 25 numbers.

December 26, 2019

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Shinjini Srinivasan

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ANSWER

No of observations is 25

Mean of 15 observations is 36

Sum of observations is 36×15=540

Mean of 10 observations is 26

Sum of observations is 26×10=260

Total sum is 540+260=800

Mean of the dta is

25

800

=32