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The scores of five students are: 20, 22, 24, 26, 28. What is the variance? (2020)

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The scores of five students are: 20, 22, 24, 26, 28. What is the variance? (2020)
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  3. 8
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Questions & Step-by-step Solutions

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Q: The scores of five students are: 20, 22, 24, 26, 28. What is the variance? (2020)
Solution: Mean = (20 + 22 + 24 + 26 + 28) / 5 = 24. Variance = [(20-24)² + (22-24)² + (24-24)² + (26-24)² + (28-24)²] / 5 = 8.
Steps: 0

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