Two unbiased coins are tossed.

Two unbiased coins are tossed. What is probability of getting at most one tail ?

Quiz

Answer/Solution

3/4

Steps/Work

Explanation:
Total 4 cases = [HH, TT, TH, HT]
Favourable cases = [HH, TH, HT]
Please note we need atmost one tail, not atleast one tail.
So probability = 3/4
Option D

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Two unbiased coins are tossed. What is probability of getting at most one tail?

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