Question #144830

Mathematics

The mean of 5 observation is 60, the mean of 10 observation is 30 and the mean of 15 observations is 20. The mean of all 30 observations is:

Options:

A) 20

B) 10

C) 15

D) 30

E) 25

Tags: Math

Answer: The mean of 5 observation is 60, the mean of 10 observation is 30 and the mean of 15 observations is 20. The mean of all 30 observations is: 30.

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Question #144830

The mean of 5 observation is 60, the mean of 10 observation is 30 and the mean of 15 observations is 20. The mean of all 30 observations is:

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Question #144830

The mean of 5 observation is 60, the mean of 10 observation is 30 and the mean of 15 observations is 20. The mean of all 30 observations is:

Options:

Mathematics Related Questions

Category

Test Your Knowledge

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