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Gekata [30.6K]
4 years ago
11

At a certain school, intro to economics and intro to calculus meet at the same time, so it is impossible for a student take both

classes. If the probability that a student takes intro to economics is 0.57, and the probability that a student takes intro to calculus 0.17, what is the probability that a student takes intro to economics or into to calculus?
Mathematics
1 answer:
zimovet [89]4 years ago
7 0

Answer:

  0.74

Step-by-step explanation:

P(A∪B) = P(A) + P(B) - P(A∩B) = 0.57 + 0.17 - 0

P(A∪B) = 0.74

The probability of A∩B is zero because the classes are mutually exclusive.

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Substotute into the formula

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