Mathematics · Average
In a group of 20 girls, the average height was initially determined to be 80 cm. However, it was later discovered that the height of one girl was incorrectly recorded as 82.5 cm when it should have been 78 cm. What is the correct average height?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 189.635 cm
- 279.775 cm✓
- 375.425 cm
- 464.835 cm
Correct answer
79.775 cm
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