Exam 3-08 - Solutions

Exam 3-08 - Solutions - Exam 3 Math 253 Spring 2008 Dr....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Spring 2008 – Dr. Weaver (20 points) 1. A sample group can be divided into three categories:  A, B, C.  Each member meets one of 4  conditions, numbered 1 through 4.  The breakdown is shown in the table below.  Find the  probabilities that: a) P( Cat A and Condition 4) b) P(Condition 2  or Cat C) c) P(neither  Condition 1 or 3, but Cat B) d) P(Cat A | Condition 4) e) P(Condition 1 | Cat C) a) P = 47/792  =  .0593    b) P =  c) P =  d) P =  e) P =  (15 points) 2. Suppose that in your city 39% of the voters are registered as Republicans, 25% as  Democrats, and the rest as members of other parties (we’ll call them Independents).  If a poll is  conducted, what is the probability that in the first three calls the people reached are: a. All Republicans .39 b. No Democrats .25 c. At least one independent .36 Cat A Cat B Cat C Condition 1
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/02/2008 for the course MATH 253 taught by Professor Weaver during the Spring '08 term at Idaho State University.

Page1 / 6

Exam 3-08 - Solutions - Exam 3 Math 253 Spring 2008 Dr....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online