Question
The mean of the numbers a, b, 8, 5, and 10 is 6 and the variance is 6.80. Then which one of the following gives the possible values of a and b ?
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Question 2
Coefficient of variation of two distributions are 60 and 70, and their standard deviations are 21 and 16, respectively. What are their arithmetic means.Question Text | The mean of the numbers a, b, 8, 5, and 10 is 6 and the variance is 6.80. Then which one of the following gives the possible values of a and b ? |