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grade 11 · A2-017

Use the probability addition rule

Add two event probabilities and subtract their shared intersection once.

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Try with a hintFresh problem · seed 1151138068

In a sample of 100 outcomes, event A occurs 36 times, event B occurs 48 times, and both occur 26 times. How many outcomes are in \(A\cup B\)?

102226AB

Give me one hint

Add the two event counts.

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Math Lab is a working name for Ready Rung's separate math-learning product. Guided success and independent evidence are reported separately.