Question

the mean of 5 observations is 5 and that of other 2 observations is 20 find the mean of all 50 observations plz g com​

Answer 1

Answer:

25

the mean of 5 observations is 5 and that of other 2 observations is 20 find the mean of all 50 observations plz g com

Answer 2

Answer:

17.6

Step-by-step explanation:

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If the mean of 10 observations is 20 and that of another 15 observations is 16, then the mean of 25 observations is __________.

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Solution

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Correct option is C)

We know mean =

Number of observation

Sum of observations

.

For first 10 observations:

20=

10

sum

1