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Question

The probability of getting at least two heads when tossing a coin three times is


A
14
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B
13
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C
12
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D
18
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Solution

The correct option is C $$\dfrac{1}{2}$$
For getting at least two heads when tossing a coin three times is $$ = (H,H,H),(H,H,T),(H,T,H),(T,H,H)$$
The probability $$= 4/8 = 1/2$$

Maths

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