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Old 02-21-2008, 02:53 PM   #1 (permalink)
 
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Default Suppose that a certain college class contains 50 students. Of these,31 are...

...sophomores, 28 are social science? Suppose that a certain college class contains 50 students. Of these,31 are sophomores, 28 are social science majors, and 6 are neither. A student is selected at random from the class.

(a) What is the probability that the student is both a
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Old 02-21-2008, 02:55 PM   #2 (permalink)
 
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it makes no sense because 28 plus 31 is more than 50.
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