View the step-by-step solution to:

STAT 200 Quiz 2 Spring 2016 Page 1 of 4 STAT 200 Introduction to Statistics Name______________________________ Quiz 2: Spring 2016 Instructor...

Could someone help me with this problems? need help as soon as possible!

STAT 200 Quiz 2 Spring 2016 Page 1 of 4 STAT 200 Introduction to Statistics Name______________________________ Quiz 2: Spring 2016 Instructor __________________________ Answer Sheet Instructions: This is an open-book exam. You may refer to your text and other course materials as you work on the exam, and you may use a calculator. Record your answers and work on the answer sheet provided. Answer all 10 questions. Make sure your answers are as complete as possible. Show all of your work and reasoning. In particular, when there are calculations involved, you must show how you come up with your answers with critical work and/or necessary tables. Answers that come straight from calculators, programs or software packages will not be accepted. If you need to use software (for example, Excel) and /or online or hand-held calculators to aid in your calculation, please cite the source and explain how you get the results. When requested, show all work and write all answers in the spaces allotted on the following pages. You may type your work using plain-text formatting or an equation editor, or you may hand-write your work and scan it. In either case, show work neatly and correctly, following standard mathematical conventions. Each step should follow clearly and completely from the previous step. If necessary, you may attach extra pages. You must complete the exam individually. Neither collaboration nor consultation with others is allowed. It is a violation of the UMUC Academic Dishonesty and Plagiarism policy to use unauthorized materials or work from others. Your exam will receive a zero grade unless you complete the following honor statement. Please sign (or type) your name below the following honor statement: I understand that it is a violation of the UMUC Academic Dishonesty and Plagiarism policy to use unauthorized materials or work from others. I promise that I did not discuss any aspect of this exam with anyone other than my instructor. I further promise that I neither gave nor received any unauthorized assistance on this exam, and that the work presented herein is entirely my own. Name _____________________ Date___________________
Background image of page 1
STAT 200 Quiz 2 Spring 2016 Page 2 of 4 Record your answers and work on the answer sheet provided. Problem Number Problem 1 (5 pts.) Table 3.15 shows a random sample of musicians and how they learned to play their instruments. Gender Self- taught Studied in School Private Instruction Total Female 12 38 22 72 Male 19 24 15 58 Total 31 62 37 130 Table 3.15 Find P (musician is a female OR is self-taught). 2 (5 pts.) Explain what is wrong with the following statements. Use complete sentences. a. If there is a 60% chance of rain on Saturday and a 70% chance of rain on Sunday, then there is a 130% chance of rain over the weekend. b. The probability that a baseball player hits a home run is greater than the probability that he gets a successful hit. 3 (5 pts.) A baker is deciding how many batches of muffins to make to sell in his bakery. He wants to make enough to sell every one and no less. Through observation, the baker has established a probability distribution. x P(x) 1 0.15 2 0.35 3 0.40 4 0.10 Table 4.21 What is the probability the baker will sell more than one batch? P(x > 1) 4 (5 pts.) A box contains four black pieces of cloth, two striped pieces, and six dotted pieces. A piece is selected randomly and then placed back in the box. A second piece is selected randomly. What is the probability that: a. Both pieces are dotted b. The frst piece is black and the second piece is dotted c. One piece is black and one piece is striped?
Background image of page 2
Show entire document
Sign up to view the entire interaction

Top Answer

Here is the solution... View the full answer

1.JPG

Sign up to view the full answer

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
Ask a homework question - tutors are online