Three unbiased coins are tossed together. What is the probability of getting at most two heads? 1. 2. 3. 4.

Question

KnowledgeBoat · Accepted Answer

When three coins are tossed together, the possible outcomes are: {(H, H, H), (H, H, T), (H, T, H), (T, H, H), (H, T, T), (T, H, T), (T, T, H), (T, T, T)} Total number of outcomes = 8 Let E be the event of getting at most two heads, E = {(H, H, T), (H, T, H), (T, H, H), (H, T, T), (T, H, T), (T, T, H), (T, T, T)} The number of favorable outcomes to the event E = 7 ∴ P(E) = Hence, option 4 is the correct option.

Mathematics

Three unbiased coins are tossed together. What is the probability of getting at most two heads? 1. 2. 3. 4.

Probability

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