Determine the probability of three coins falling all heads up when tossed simultaneously.

\frac{1}{2}

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\frac{1}{6}

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\frac{1}{8}

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\frac{7}{8}

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Solution

The correct option is C $\frac{1}{8}$
Probability = $\frac{N u m b e r o f f a v o u r a b l e o u t c o m e s}{T o t a l n u m b e r o f o u t c o m e s}$

Total outcomes = 8
[HHH, HTH, HHT, TTT, HTT, THT, TTH, THH]

Favorable outcomes = 1 [HHH]

Probability of three coins falling all head up when tossed simultaneously $= \frac{1}{8}$

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What is the probability of getting all heads or all tails, when three coins are tossed simultaneously?

Outcome	3 heads	2 heads	1 head	No head
Frequency	23	72	77	28

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