Math, asked by jkrajput1973, 6 months ago

the mean of 8 observations is 15 and another 12 observation is 18 hence the mean of all 20 observation is

Answers

Answered by budooralnasser

0

Answer:

33

Step-by-step explanation:

add the mean of the 8 observations and the mean of the 12 observations to get the mean of 20 observations

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