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In the formula barx=a+(sum f(i)d(i))/(su...

In the formula `barx=a+(sum f_(i)d_(i))/(sum f_(i))` for finding the mean of grouped data, '`d_(i)`'s are deviations from the

A

Lower limit of the classes

B

Upper limit of the classes

C

Midpoint of the classes

D

Frequencies of the class mark

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The correct Answer is:
C
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ZEN PUBLICATION-STATISTICS -ZEN ADDITIONAL QUESTIONS (MULTIPLE-CHOICE QUESTIONS)
  1. The measure of central tendency influenced by extreme values is

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  2. If the arithmetic mean of 7, 8, x, 11, and 14 is x, x =

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  3. In the formula barx=a+(sum f(i)d(i))/(sum f(i)) for finding the mean o...

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  4. If u(i)=(x(i)-15)/(8), Sigma f(i)u(i)=20, and Sigmaf(i)=80, barx is

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  5. In the frequency distribution, if Sigmaf(i) =75 and Sigmaf(i)x(i)=6225...

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  6. If the mean of distribution is 2.6. The value of x is

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  7. Given the following distribution: The modal class is

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  8. The cumulative frequency table is useful is determining

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  9. Give distribution: The sum of the lower limits of the median clas...

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  10. Given data: The difference between the upper limit of the median ...

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  11. In a class test, 50 students obtained marks as follows. The frequ...

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  12. The abscissa of the point of intersection of the less-than type and of...

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  13. If the median of data 24, 25, 26, P+2, P+3, 30,31,34 is 27.5. Then P =

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  14. The median of first 10 prime numbers is

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  15. Find the median class of the following distribution:

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  16. Consider the following frequency distribution The lower limit of ...

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  17. The relation between mean, median, and mode for a frequency distributi...

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  18. The value of the mode when mean is 146 and median is 130 is

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  19. If mode = 80 and mean = 110, median is

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  20. Consider the following distribution. The frequency of the class 3...

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