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BITSAT 2013
Exam
BITSAT
Year
2013
Subject
Mathematics
Chapter
Statistics

BITSAT 2013 · Mathematics · Statistics

Find the variance of the data given below

Find the variance of the data given below Find the variance of the data given below

Options

  1. A1.29
  2. B2.19
  3. C1.32
  4. DNone of these

Correct answer

C. 1.32

Step-by-step solution

Find the variance of the data given below
Variance σ2=Σfi(xi−xˉ)2Σfi=286.49217=1.32\sigma^{2}=\frac{\Sigma f_{i}\left(x_{i}-\bar{x}\right)^{2}}{\Sigma f_{i}}=\frac{286.49}{217}=1.32
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