Four coins are tossed. probability that at least one head turns up, is

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14.Probability

easy

Four coins are tossed. The probability that at least one head turns up, is

A

$1/16$

B

$1/4$

C

$15/16$

D

None of these

Solution

(c) Required probability is $1 – P $ (no head)

$ = 1 – {\left( {\frac{1}{2}} \right)^4} = \frac{{15}}{{16}}$.

Standard 11

Mathematics

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