{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

math 218 fall 2009 final

# math 218 fall 2009 final - MATH 218 FINAL EXAM Last Name...

This preview shows pages 1–4. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Problem 1. (20 points) In a large community 60% of all people have Visa credit cards and 50% of all people have MasterCard credit cards. 27% of people in this community have MasterCard credit cards but no Visa credit cards. Assume that no one can have more than one card of the same type. (a) (5 points) Find the probability that a randomly selected person in this community has both Visa and MasterCard credit cards. (a) (b) (5 points) Find the probability that a randomly selected person in this community has exactly one credit card (Visa or MasterCard). (b) (c) (5 points) Are the events “person has a Visa card” and “person has a MasterCard card” independent? Explain. (d) (5 points) Is a randomly selected person more likely or less likely to have a MasterCard card if he/she has a Visa card? Explain. (c) (d) 2
Problem 2. (20 points) There are three bags containing marbles. Two bags contain 5 red and 1 black marbles each and one bag contains 3 red and 3 black marbles. A bag is randomly selected and then two marbles are randomly selected without replacement from that bag.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 12

math 218 fall 2009 final - MATH 218 FINAL EXAM Last Name...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online