Select the correct choice that completes the sentence below.
For any event $A, P(A)+P(\operatorname{not} A)=$
0.5 .
2.
1.
0.

Answer

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Answer

Final Answer: $\boxed{1}$

Steps

Step 1 ：The question is asking for the sum of the probability of an event A and the probability of not A. In probability theory, the sum of the probabilities of an event and its complement (not A) is always equal to 1. This is a fundamental rule of probability.

Step 2 ：Final Answer: $\boxed{1}$

Select the correct choice that completes the sentence below.For any event $A, P(A)+P(\operatorname{not} A)=$0.5 .2.1.0.

Answer

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Select the correct choice that completes the sentence below.
For any event $A, P(A)+P(\operatorname{not} A)=$
0.5 .
2.
1.
0.