JEE Questions for Maths Statistics Quiz 13 - MCQExams.com

If for a slightly as symmetric distribution, mean and median are 5 and 6 respectively. What is its mode?
  • 5
  • 6
  • 7
  • 8
The S.D. of the first n natural numbers is

  • Maths-Statistics-51462.png
  • 2)
    Maths-Statistics-51463.png

  • Maths-Statistics-51464.png
  • None of these
One set containing five numbers has mean 8 and variance 18 and the second set containing 3 numbers has mean 8 and variance 24. Then the variance of the combined set of numbers is
  • 42
  • 20.25
  • 18
  • None of these

Maths-Statistics-51467.png

  • Maths-Statistics-51468.png
  • 2)
    Maths-Statistics-51469.png

  • Maths-Statistics-51470.png

  • Maths-Statistics-51471.png

  • Maths-Statistics-51472.png
In any discrete series (when all values are not same) the relationship between M.D. about mean and S.D. is
  • M.D. = S.D.
  • M.D. ≥ S.D.
  • M.D. < S.D.
  • M.D. ≤ S.D.

Maths-Statistics-51475.png
  • M.D.
  • S.D.
  • 0
  • Relative frequency

Maths-Statistics-51477.png

  • Maths-Statistics-51478.png
  • 5

  • Maths-Statistics-51479.png

  • Maths-Statistics-51480.png
0:0:1


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