Question

The probability of compliment event of impossible event is ..................

• A. 0.5
• B. 0
• C. 1
• D. 0.46

Answer 1

Answer: (C)

1

Let $E$ be an event which is impossible.

That is, $E$ does not occur ever. So, there will be no elements in $E$

Thus, the probability of $E$ will be zero.

So, the probability of an impossible event is zero.
$\therefore$ The probability of compliment event of impossible event $=$ Total probability $-$ Probability of $E=1-0=1$

Hence, the answer is $1$.