Question:medium

Find the variance of the data given below \[ \text{Size of item:} \quad 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5 \\ \text{Frequency:} \quad 3, 7, 22, 60, 85, 32, 8 \]

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The variance measures the spread of the data points. Use the formula for variance to find the dispersion from the mean.
Updated On: Mar 25, 2026
  • 1.29
  • 1.32
  • 1.36
  • None of these
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The Correct Option is B

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