If the probability of an event A is 0.3, what is the probability of the event no

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Question: If the probability of an event A is 0.3, what is the probability of the event not occurring?

Options:

Correct Answer: 0.7

Solution:

Probability of not A = 1 - P(A) = 1 - 0.3 = 0.7.

If the probability of an event A is 0.3, what is the probability of the event not occurring?

If the probability of an event A is 0.3, what is the probability of the event not occurring?

Correct Answer: 0.7

Step 1: Understand that the probability of an event A occurring is given as 0.3.
Step 2: Know that the probability of an event not occurring is found by subtracting the probability of the event occurring from 1.
Step 3: Use the formula: Probability of not A = 1 - P(A).
Step 4: Substitute the value of P(A) into the formula: Probability of not A = 1 - 0.3.
Step 5: Calculate the result: 1 - 0.3 = 0.7.
Step 6: Conclude that the probability of the event not occurring is 0.7.

Complementary Probability – The probability of an event not occurring is calculated as 1 minus the probability of the event occurring.