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Three coins are tossed together. Find the probability of getting no tails.
Given:
Three coins are tossed together.To do:
We have to find the probability of getting no tails.
Solution:
When three coins are tossed, the total possible outcomes are HHH, HHT, HTH, THH, TTH, THT, HTT and TTT.
This implies,
The total number of possible outcomes $n=8$.
Number of outcomes where no tails occur $=1$
Total number of favourable outcomes $=1$.
We know that,
Probability of an event $=\frac{Number\ of\ favourable\ outcomes}{Total\ number\ of\ possible\ outcomes}$
Therefore,
Probability of getting no tails $=\frac{1}{8}$
The probability of getting no tails is $\frac{1}{8}$.
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