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Find the mean of the following frequency...

Find the mean of the following frequency distribution: Variable `(x_i)` , 2, 4, 6, 8, 10, 12, 14, 16 Frequency `(f_i)` , 4, 4, 5, 15, 8, 5, 4, 5

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Find the variance and standard deviation of the following frequency distribution: Variable (x_i) , 2, 4, 6, 8, 10, 12, 14, 16 Frequency (f_i) , 4, 4, 5, 15, 8, 5, 4, 5

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If the mean of the following frequency distribution is 15, find the value of p. {:("Variable"(x_(i)),10,12,14,16,18),("Frequency"(f_(i)),13,p,15,32,28):}

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RD SHARMA ENGLISH-STATISTICS-All Questions
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  2. Find the mean and standard deviation of first n terms of an A.P. whose...

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  3. Find the mean of the following frequency distribution: Variable (xi)...

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  6. Find the standard deviation for the following data: (i) x : , 3, 8, 13...

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  7. Calculate the mean and standard deviation for the following distrib...

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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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  9. For a frequency distribution standard deviation is computed by applyin...

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

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  11. If n=10 , X =12 and sumx(i)^2=1530 , then the coefficient of variati...

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

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  14. Following are the marks obtained, out of 100, by two students Ravi and...

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

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

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

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

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  19. The standard deviation of first 10 natural numbers is ...

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  20. The mean deviation of the data 3,10,10,4,7,10,5 (a) 2 (b) 2.57(c)3 (d)...

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