Lesson_04_Quiz_Help_02

# Lesson_04_Quiz_Help_02 - Use software for the following...

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

Use software for the following problem. 1. Suppose that a student needs to buy 6 books for her history course. The number of books that she will be able to find used is a binomial random variable X with n = 6 and p = 0.30. In other words, the probability that she will find any given book used is 0.30, and is independent from one book to the next. What is the probability that she will find exactly 2 used books? There are number of ways to deal with this problem: a. Use Minitab by the following command: click on Calc>Probability Distributions>Binomial then input as the following b. Compute it by hand: Prob(X=2)= 4 2 7 . 0 3 . 0 )! 2 6 ( ! 2 ! 6 =0.3241, see page 293. If the question asks for the probability less than and equal to 2 books, then you need to click on Cumulative probability in the figure above (instead of Probability). If you want to compute it by hand, then you need to use the formula to compute P(X=0), P(X=1), and P(X=2), then you add all three terms.

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

View Full Document
2. Use software to answer the following: You just found out that you have been kicked out of your apartment (through no fault of your own!) and need to find a new place to live. Suppose monthly
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