Math, asked by aryagharat204, 2 months ago

2
.
The number of observations, mean and standard deviation of two distributions are as follows:
No. of items 240 360
Mean
40
60
S.D.
4
6
Find mean and standard deviation of the distribution formed by the two distributions taken together.
3.
The following table choun thi

Answers

Answered by aaravgtm1001

1

Step-by-step explanation:

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