ex_introd

# ex_introd - a randomly selected family (a) owns both a dog...

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Introduction to Probability 1. 52% of the students of certain college are females. 5% of the students major in computer science (CS). 2% of the students are women majoring in CS. If a student is selected at random Fnd the probability that (a) the students is a female given she is majoring in CS. (b) the student is majoring in CS given the student is a female. 1

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2. In a certain community, 36% of the families own a dog and 22% of the families that own a dog also own a cat. In addition, 30% of the families own a cat. What is the probability that
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Unformatted text preview: a randomly selected family (a) owns both a dog and a cat? (b) owns a dog given that the family owns a cat? 2 Midterm result Fail Pass Classes < 5 . 08 . 72 Missed 5 . 02 . 18 3. A USC professor believes that exists a relationship between the number of missed classes before the rst midterm and the grade in the rst midterm. After examining his records he produces the table above Are the midterm results independent of the classes missed? 3...
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## This note was uploaded on 09/05/2009 for the course MATH 218 taught by Professor Haskell during the Fall '06 term at USC.

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ex_introd - a randomly selected family (a) owns both a dog...

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