SOLUTION: A student is selected at random from a group of 200 students in which 135 take math, 85 take English and 65 take both math and English. Find the probability that the selected stude

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Question 168753: A student is selected at random from a group of 200 students in which 135 take math, 85 take English and 65 take both math and English. Find the probability that the selected student takes math or English.
Answer by stanbon(75887) About Me  (Show Source):
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A student is selected at random from a group of 200 students in which 135 take math, 85 take English and 65 take both math and English. Find the probability that the selected student takes math or English.
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P(M or E)= P(M) + P(E) - P(M and E)
= 135/200 + 85/200 - 65/200
= (135 + 85 - 65)/200
= 155/200
= 0.775
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Cheers,
Stan H.