SOLUTION: Suppose a student is selected at random from 80 student where 30 are taking mathematics,20 are taking chemistry, and 10 are taking mathematics and chemistry. Find the probability t

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Question 1063413: Suppose a student is selected at random from 80 student where 30 are taking mathematics,20 are taking chemistry, and 10 are taking mathematics and chemistry. Find the probability that the student is taking mathematics or chemistry
Answer by reviewermath(1029) About Me  (Show Source):
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Q: Suppose a student is selected at random from 80 student where 30 are taking mathematics,20 are taking chemistry, and 10 are taking mathematics and chemistry. Find the probability that the student is taking mathematics or chemistry
Tutorial:
P(Math or Chem) = P(Math) + P(Chem) - P(Math and Chem)
= (30/80) + (20/80) - (10/80)
= highlight%281%2F2%29