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

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

A

1516\frac { 15 } { 16 }

B

116\frac { 1 } { 16 }

C

14\frac { 1 } { 4 }

D

None of these

Answer

1516\frac { 15 } { 16 }

Explanation

Solution

Required probability =1−(12)4=1516= 1 - \left( \frac { 1 } { 2 } \right) ^ { 4 } = \frac { 15 } { 16 }