Mathematics · Statistics
A researcher collected data on the colony diameter (in mm) for a sample of n=10 bacteria colonies after 24 hours: 4.5, 6, 6.5, 5, 7, 4, 6.5, 7, 5.5, 4.5. The average colony diameter is 5.65 mm. Find the sample standard deviation, rounded to two decimal places.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13.85 mm
- 21.11 mm✓
- 30.92 mm
- 42.90 mm
Correct answer
1.11 mm
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