Direction: The abdomen length (in millimeters) was measured in 15 male fruit flies, and the following data were obtained :
1.9, 2.4, 2.1, 2.0, 2.2, 2.4, 1.7, 1.8, 2.0, 2.0, 2.3, 2.1, 1.6, 2.3 and 2.2.
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The value of standard deviation (SD) will be
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- 0.061
- 0.25
- 0.61
- 0.85
Correct Option: B
We know, Standard deviation, S.D. = √(Variance) = √σ²
Now, Variance = 0.061 (from previous question)
Hence, Standard deviation = √(0.061) = 0.25 (approx.)
