Question 328562
 During a poll students were asked what classes they are taking now. 
72 students are taking history, 60 students are taking statistics and 25 students are taking history and statistics 
Based on your numbers calculate PROBABILITY that student in this college takes History class OR takes Statistics class.
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N(hist OR stat) = N(hist)+N(stat)-N(hist AND stat) 
= 72 + 60 -25 
= 107
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# of students in the college = ?
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P(taking hist OR stat) = 107/?
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Cheers,
Stan H.