Question

The mean of 30 observations of a group is 22.8 and the mean of 20 observations of

another group is 18.2. Find the combined mean of the two groups.​

Answer 1

Answer: The combined mean of the two groups is 41.0..

Step-by-step explanation:

First of all we have to add both the means like this  - 22.8 + 18.2 = 41.0..

Then we get the answer as 41.0 ..

41.0 is the combined mean of the two groups..  

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