Question

2. If p is the probability of the occurrence of an event, then q, the probability of not occurrence is______.

Answer 1

Answer:

1-p

all probabilities must add to 1.

so if it happens with p

it will not happen with 1-p

Answer 2

The probability of the event not occuring is 1-p.

1) As per the event, It is either likely to happen or not happen.

2) Since, we have only two options, the sum of their probabilities would be 1

3) P is the probability that event will happen and Q is the probability that event won't happen.

4) So, P + Q = 1.

5) Hence Q = 1-P.