Problem 112 of 7
Use complement with the addition rule for P(A or B)=0.72; find neither.
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compute "neither" or "not A or B.".
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Neither A nor B is the complement of A or B.
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Solution
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1. Compute or identify P(A or B).
2. Use complement probability 1-P(A or B).
3. Interpret as neither or not A or B.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Subtracting P(A and B) from 1 when the question asks neither.