Question

If the probability of an event occurring is 0.4,what is the probability of the even Not occurring

Answer 1

The probability of an event not occurring is found by subtracting the event's probability from 1. If an event's probability is 0.4, then the probability of it not occurring is 0.6.

Step-by-step explanation:

If the probability of an event occurring is 0.4, the probability of the event Not occurring is calculated by subtracting the probability of the event occurring from 1. This is because the sum of the probabilities of all possible outcomes must equal 1. So, the probability of the event Not occurring is 1 - 0.4 = 0.6.

Answer 2

Answer: 0.6

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To get this answer, subtract the given value (0.4) from 1 to get
1-0.4 = 0.6

The reason why this works is because the event either happens or it doesn't happen. There are no other options. So if
A = event happens
B = event doesn't happen
then P(A)+P(B) = 1 which leads to P(B) = 1-P(A)