Mathematics · Probability Distribution
Three fair coins with faces numbered 1 and 0 are tossed simultaneously. If X represents the random variable for the sum of the numbers on the uppermost faces, what is the variance Var(X) of the probability distribution?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 10.70
- 20.75✓
- 30.65
- 40.60
Correct answer
0.75
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