Test 1b Solution

Test 1b Solution - STAT 230 Quiz#1 For all of the problems...

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

STAT 230 Quiz #1 Sept 29, 2004 For all of the problems below, show your work in the space indicated! Name: I.D. No.: Section No. [____/12] 1. Four digits are selected from 1,2, ,9 without replacement and randomly placed in a row. [4] (a) What is your sample space S for this random experiment? How many points are in S ? A possible choice of sample space S 1234,2134,3214,. ....6789 i.e. all arrangements of 4 things taken from 9. There are 9 4 points in this S . (note-there are other alternative solutions as well) [4] (b) What is the probability that the first digit is 1 and last digit is 9? There is 1 way of choosing the number (1 for the first digit, for each of these, 1 way of choosing the number 9 for the last digit and 7 6 ways of choosing a numbers from the remaining for the remaining middle digits. Therefore 1 7 6 1 9 8 7 6 [4] (c) What is the probability of the arrangement (odd number,odd number, even number, even number)?

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/21/2010 for the course STAT 230 taught by Professor Various during the Fall '06 term at Waterloo.

Page1 / 2

Test 1b Solution - STAT 230 Quiz#1 For all of the problems...

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

View Full Document
Ask a homework question - tutors are online