Two unbiased coins are tossed simultaneously. Find the probability of getting at most one head.

Foundation

Mathematics Foundation

Definition of Probability

Question

$\frac{1}{4}$

$\frac{1}{2}$

$\frac{3}{4}$

$\frac{1}{3}$

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Since, Total possibilities are $=$ ${H H, H T, T H, T T}$
no. of cases with atmost one head are $= {H T, T H, T T}$
$∴$ probability = $\frac{3}{4}$
Option C is correct.