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Find the mean: (xi) , 2, 4, 6, 8, 10,...

Find the mean: `(x_i)` , 2, 4, 6, 8, 10, 12, 14, 16

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`Mean=(2+ 4+ 6+8+ 10+ 12+ 14+16)/8`
`=9`
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RD SHARMA-STATISTICS-Solved Examples And Exercises
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  3. Find the mean: (xi) , 2, 4, 6, 8, 10, 12, 14, 16

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  8. Let x1, x2, ,xn be xn observations. Let yi=a xi+b for i=1,2,...,n wher...

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  10. The mean of 100 numbers observations is 50 and their standards deviat...

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  11. If n=10 , X =12 and sumx(12)=1530 , then the coefficient of variation...

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  12. If the standard deviation of a variable X \ is \ sigma , then standard...

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  13. Let a, b, c, d, e, be the observations with m and standard deviation s...

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  14. The lengths (in cm) of 10 rods in a shop are given below: 40.0,52.3,55...

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  15. If the S.D. of a set of observations is 8 and if each observation is ...

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  16. The standard deviation of the observations 6,5,9,13,12,8,10 is (a)6 ...

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  17. The standard deviation of first 10 natural numbers is

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  18. The mean deviation of the data 3,10,10,4,7,10,5 from the mean is

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  19. While calculating eh mean and variance of 10 readings, a student wr...

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  20. Mean  and standard deviation of 100 observations were found to be 4...

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