What is the likelihood of flipping three heads consecutively followed by a tail in four tosses of a coin?

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\frac{1}{32}

\frac{1}{16}

Correct

\frac{2}{16}

\frac{3}{16}

\frac{4}{16}

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Explanation

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Official Explanation

Official

To find the probability of getting the sequence H-H-H-T in that specific order, we calculate it as follows: The probability of getting heads on each flip is

\frac{1}{2}

. Therefore, for three heads followed by a tail, the calculation is [m]\frac{1}{2} *…

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Comments

BellaJun 27, 2024

how much time should this take to solve?

SushmitaNov 16, 2024

thank you taking time to upload it!

What this question tests

What it tests

Your ability to compute probabilities of single and compound events, including 'at least one' questions.

Common trap

Forgetting to use the complement for 'at least one', or treating dependent events as independent.