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Write the modal class for the following frequency distribution: Class-interval:  10-15   15-20   20-25   25-30   30-35   35-40 Frequency:          30        35         75        40         30        15

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Calculate the median from the following distribution: Class: 5-10 10-15 15-20 20-25 25-30 30-35 35-40 40-45 Frequency: 5 6 15 10 5 4 2 2

Find the mean of the following frequency distributions: Class i nterval: 10-30 30-50 50-70 70-90 90-110 110-130 Frequency: 5 8 12 20 3 2

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RD SHARMA ENGLISH-STATISTICS-All Questions
  1. Write the empirical relation between mean, mode and median.

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  2. Which measure of central tendency can be determined graphically

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  3. Write the modal class for the following frequency distribution: Class-...

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  4. A student draws a cumulative frequency curve for the marks obtained by...

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  5. Write the median class for the following frequency distribution: Class...

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  6. In the graphical representation of a frequency distribution, if the ...

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  7. Find the class marks of classes 10-25 and 35-55.

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  8. Write the median class of the following distribution: Classes:        ...

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

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

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

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

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

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

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

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

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

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

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

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

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