Mathematics · Probability
Three fair coins with faces numbered 1 and 0 are tossed simultaneously. If the random variable X represents the sum of the numbers on the uppermost faces, then the variance Var(X) of the probability distribution is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 10.62
- 20.65
- 30.75✓
- 40.70
Correct answer
0.75
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