Question

Out of 50 observations the mean of 25 observation is 30 and the mean of 25 observation is 32.The mean of 50 observation is:
(a)34 (b)33 (c)32 (d)31

Answer 1

Answer:

d

Step-by-step explanation:

answer is 31

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Answer 2

Answer:

The correct answer of this question is $31$

Step-by-step explanation:

Given - Out of 50 observations the mean of 25 observation is 30 and the mean of 25 observation is 32.

To Find - Write the mean of 50 observation .

In the context of a mathematical activity, the finding or proclamation of a truth.

According to the question -

The mean of 50 observation is - $\frac{30 + 32}{2}$

= $\frac{62}{2}$  = $31$

The mean of 50 observation is $31$

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