The variance of the data set {2, 4, 6, 8, 10} is:

A 8

B 4

C 10

D 6

✓ Correct Answer: Option A

Mean=6. Variance = [(16+4+0+4+16)]/5 = 40/5 = 8.

💡 Why is A) the correct answer?

The correct answer to the question "The variance of the data set {2, 4, 6, 8, 10} is:" is Option A: 8.

The other options — B) 4, C) 10, D) 6 — are incorrect for this Mathematics question. As explained above: Mean=6. Variance = [(16+4+0+4+16)]/5 = 40/5 = 8.

📚 About This Mathematics Practice Question

This 2-level Mathematics question from the Statistics & Probability topic is part of One Paper Preparation's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free Mathematics practice test or use flashcards for spaced repetition review.

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The variance of the data set {2, 4, 6, 8, 10} is:

✓ Correct Answer: Option A

📚 About This Mathematics Practice Question

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