Bus 190 - Chapter 2 and 3 Homework Solutions - Bus 190 Chapter 2 and 3 Homework Solutions Problem Chapter 2 13 a ReasonforApplying Qualit y

# Bus 190 - Chapter 2 and 3 Homework Solutions - Bus 190...

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Bus 190 – Chapter 2 and 3 Homework Solutions Problem: Chapter 2 13. a. Reason for Applying Qualit y Cost/Convenience Other Total Full  Time 0.218 0.204 0.039 0.461 Part  Time 0.208 0.307 0.024 0.539 Total 0.426 0.511 0.063 1.00  b. It is most likely a student will cite cost or convenience as the first reason: probability =  0.511.  School quality is the first reason cited by the second largest number of students:  probability = 0.426. c. P (Quality full time) = 0.218/0.461 = 0.473 d. P (Quality part time) = 0.208/0.539 = 0.386 e. P ( B ) = 0.426 and P (B A) = 0.473 Since  P  ( B   P  (B A), the events are dependent. 23. a. P(Oil) = 0.50 + 0.20 = 0.70 b. Let S = Soil test results Events P(A i ) P(S A i ) P(A i    S) P(A i  S) High Quality (A 1 ) 0.50 0.20 0.10 0.435 Medium Quality  (A 2 ) 0.20 0.20 0.04