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Prove that "The Algebraic Sum of deviati...

Prove that "The Algebraic Sum of deviations from Mean is zero".

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RD SHARMA ENGLISH-STATISTICS-All Questions
  1. Write the median class of the following distribution: Classes:        ...

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  2. Which of the following is not a measure of central tendency? (a) Mean ...

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  3. Prove that "The Algebraic Sum of deviations from Mean is zero".

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  4. For a frequency distribution, mean, median and mode are connected by ...

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  5. Which of the following cannot be determined graphically? (a) Mean     ...

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  6. The median of a given frequency distribution is found graphically with...

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  7. The mode of a frequency distribution can be determined graphically fro...

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  8. Mode is (a) least frequent value     (b) middle most value (c) most fr...

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  9. One of the methods of determining mode is (a) Mode = 2 Median – 3 Mean...

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  10. If the mean of the following distribution is 2.6, then the value of y ...

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  11. The relationship between mean, median and mode for a moderately skewed...

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  12. The mean of a discrete frequency distribution xi//fi ; i=1,\ 2,\ ddot,...

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  13. If the arithmetic mean of x ,\ x+3,\ x+6,\ x+9, and x+12 is 10, the x=...

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  14. If the median of the data: 24, 25, 26, x+2 , x+3 , 30, 31, 34 is 27.5,...

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  15. If the median of the data: 6, 7, x-2,\ x , 17, 20, written in ascendin...

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  16. The median of first 10 prime numbers is (a) 11           (b) 12       ...

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  17. If the mode of the data: 64 ,\ 60 ,\ 48 ,\ x ,\ 43 ,\ 48 ,\ 43 ,\ 34 i...

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  18. If the mode of the data: 16 ,\ 15 ,\ 17 ,\ 16 ,\ 15 ,\ x ,\ 19 ,\ 17 ,...

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  19. If the mean of a frequency distribution is 8.1 and sumfi xi=132+5k ,\ ...

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  20. If the mean of 6,\ 7,\ x ,\ 8,\ y ,\ 14 is 9, then (a) x+y=21 (b) x+y...

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