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How many total outcomes are possible when a coin is tossed and a die is rolled?

Answer and explanation

Correct answer: (12)

The direct answer is option A, 12. The experiment has two parts performed together: tossing a coin and rolling a die. A coin has 2 possible outcomes, usually heads or tails. A standard die has 6 possible outcomes, numbered 1 through 6. For every coin result, each of the 6 die results can occur. Therefore, by the multiplication principle, total outcomes=2×6=12. They can be listed as H1, H2, H3, H4, H5, H6, T1, T2, T3, T4, T5, T6. Option A, 12, is correct. Option B, 8, is wrong because it does not result from combining all 2 coin outcomes with all 6 die outcomes. Option C, 6, counts only the die outcomes and ignores the coin. Option D, 2, counts only the coin outcomes and ignores the die. This is a case of “and”: one coin outcome and one die outcome together form a complete outcome, so multiply rather than add. Addition would be used for separate alternatives such as coin or die, not for both experiments occurring in one trial. The outcomes are equally structured as ordered pairs, such as (H,4) or (T,2). Memory cue: when independent experiments happen together, multiply their numbers of outcomes.

Related tags

Permutations And CombinationsCounting PrincipleOutcomes

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