Computers and Technology

6. A distribution consists of three components with frequencies 200, 250 and 300 having means 25,10, and 15 and standard deviations 3, 4, and 5 respectively.
Calculate
The mean?
The standard deviation?

answer
Answers: 2

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6. A distribution consists of three components with frequencies 200, 250 and 300 having means 25,10...

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