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If the sum of 15 observations is 420 the...

If the sum of 15 observations is 420 then their mean = ..........

A

28

B

26

C

24

D

30

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BEYOND PUBLICATION-STATISTICS-EXERCISE
  1. If mean of 8,6,4,x,3,6 and 0 is 4 then the value of x =……

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  2. AM of 1, 2, x, 3 is 0 then x = ....

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  3. If the sum of 15 observations is 420 then their mean = ..........

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  4. In "more than ogive curve" we consider in drawing………..

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  5. If bar x, is the mean of x1, x2, x3,…………..xn (n items) then overset(n)...

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  6. Mode can be calculated by = l+((f1-f0)/(2f1-f0-f2))xxh here f1 represe...

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  7. x/4, x, x/5, x/6, x/4 If the mode of (x > 0)is 5 then x=

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  8. If 20 is removed from the data 20, 24, 25, 26,27,28,29,30 then the med...

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  9. Which of the following measures of central tendency is mostly effected...

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  10. The middle most value of a data is called

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  11. If the mean of 4, x, 6,9,9,y and 13 is 8 then the relation between X a...

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  12. The symbol of "implies" is…….

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  13. Range of the data 16,17,15,11,18,23,10,9,10

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  14. The class marks of a class interval is ..........

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  15. If mode of the following data is 7, then the value of 6, 3, 5, 6, 7, 5...

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  16. Which of the following is not a measure of central tendency ?

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  17. For a symmetrical distribution, which is correct ?

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  18. The measure of central tendency which take into account all data terms...

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  19. A data arrange in descending order has 25 observations. Which observat...

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  20. Construction of cumulative frequency table is useful in determining th...

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