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Question: The probability of having at least one tail in 4 throws with a coin is...

The probability of having at least one tail in 4 throws with a coin is

A

15/16

B

11/15

C

¼

D

1

Answer

15/16

Explanation

Solution

Probability of no tail in 4 throws of coin = (12)4=116\left( \frac { 1 } { 2 } \right) ^ { 4 } = \frac { 1 } { 16 }

\ Required probability = 1 - 116=1516\frac { 1 } { 16 } = \frac { 15 } { 16 }