Chapter 5+6 Practice Test - Chapter 5-6 Test Review...

Chapter 5-6 Test Review December 8, 2008
Remember that to receive credit on any free response question on the test you have to
show your methods and reasoning. You should also make sure that you read over your
notes for chapters 5 and 6 before the test.
1. What is the probability that you draw five cards from a normal deck of cards (without
replacement) and get no hearts?
2. Assume you are designing an experiment to test three new brake pad designs for
automobile brakes. You are trying to determine which of the new brake pads is the most
effective. Include as much detail as possible.
3. A box contains six red tags numbered 1 through 6 and four white tags numbered 1
through 4. One tag is drawn at random.
(a) Write the sample space for this experiment.
Calculate the following probabilities:
(b) P (red) (c) P (even number)
(d) P (red and even) (e) P (red or even)
(f) P (neither red nor even) (g) P (even | red)
(h) P (red | even) (i) P ( <4 | odd)
4. Suppose that for a group of consumers, the probability of eating pretzels is 0.75 and