Question

Chapter-3
[1 mark]
13.) The mean of 32 observations is 28 and that of 18 observations is 30. The mean of all 50 observations is
(a) 30.24
(b) 28.72
(c) 24.82
(d) 30.32
​

Answer 1

Answer:

24.82

Step-by-step explanation:

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