{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

prob &amp; randvar(1)

# prob &amp; randvar(1) - Practice Problems for...

This preview shows pages 1–3. Sign up to view the full content.

Practice Problems for Probability & Random Variables © 2010 Radha Bose FSU Department of Statistics 1 1. Match the pairs of events below with the answer choices in the table. Pair I, II or III Classification Disjoint (therefore also Dependent) Not disjoint & Independent Not disjoint & Dependent I — Choose a college junior at random and let A = {they are currently studying Statistics, Economics and Accounting} B = {they graduate with a medical degree} II — Choose a person at random and let A = {that person was born in Seattle} B = {that person was born in Florida} III — Choose a wine at random and let A = {the grapes were grown in California} B = {the wine is sold in glass bottles} 2. Classify the following random variables as discrete (D) or continuous (C). R = the exact number of characters printed on a randomly selected page of this packet S = the exact square footage of a randomly selected apartment T = the exact amount of gas it takes to drive from FSU to your (off-campus) home U = the amount of water that a randomly selected giraffe drinks in a day V = the weight of a randomly selected newborn giraffe W = the number of eyelashes on a randomly selected giraffe X = the time it takes for a randomly selected giraffe to run 77 miles Y = the number of giraffes that live in a randomly selected zoo/sanctuary Z = the number of nails on the fence around a randomly selected giraffe enclosure 3. Classify the following random variables as discrete (D) or continuous (C). For the ones that are discrete, write down the sample space. W = the number of crackers consumed by a randomly selected guest at a certain restaurant one day (assume that crackers are given out free and in unlimited quantity) X = the amount of zinc present in a randomly selected cold tablet Y = the mean of three randomly selected numbers from the set {2, 4, 6, 8}, no repeats allowed Z = the internal temperature of a randomly selected piece of chicken on the grill at a certain restaurant one day 4. Which ONE of the following tables gives a legitimate assignment of probabilities for blood type? (A) (B) (C) (D) Bl.Type Prob. Bl.Type Prob. Bl.Type Prob. Bl.Type Prob. A 0.35 A 0.25 A 0.35 A 0.05 B 0.35 B 0.25 B -0.05 B 0.45 O 0.35 O 0.25 O 0.35 O 0.35 AB 0.35 AB 0.15 AB 0.35 AB 0.15

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

View Full Document
Practice Problems for Probability & Random Variables © 2010 Radha Bose FSU Department of Statistics 2 5. So what are you doing for Valentine's Day? ° ° ° It is possible that you go out for a movie with your special someone (M). It is also possible that you go out for dinner (D) with your special someone. The Venn Diagram below shows the possibilities. For each part of this question, draw the same diagram (but use circles to represent M and D) and shade in the event described. (a) You go out for both a movie and dinner. (b) You'll go out for a movie or dinner, but you can't afford both.
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern