Assertion: probability | /r/HasProperty | 1 − 0.2
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Source sentences:
text: The chance of a flight not having a delay is 1 − 0.2 = 0.8, so these are all the possible outcomes: 0.8 × 0.8 = 0.64 chance of no delays 0.2 × 0.8 = 0.16 chance of 1st flight delayed 0.8 × 0.2 = 0.16 chance of return flight delayed 0.2 × 0.2 = 0.04 chance of both flights delayed When we add all the possibilities we get: 0.64 + 0.16 + 0.16 + 0.04 = 1.0 They all add to 1.0, which is a good way of checking our calculations.