When finding $\operatorname{P}(A \text{ or } B)$ for inclusive events, why must $\operatorname{P}(A \text{ and } B)$ be subtracted from $\operatorname{P}(A) + \operatorname{P}(B)$?

To account for outcomes that are not in A or B.

Because the events are independent.

To correct for double-counting the outcomes that are in both A and B.

To make sure the probability is a positive number.

Mutually Exclusive and Inclusive Events Practice — Grade 9 math