Posted by Zach on Thursday, November 12, 2009 at 9:25pm.
On a multiple choice test with 10 questions and 5 choices, A,B,C,D,E, for each questions, what are the odds of guessing on all 10 questions and getting 100%. State your answer as a common fraction.
Thanks
Zach

Algebra 1  Reiny, Thursday, November 12, 2009 at 9:33pm
the prob of getting all 5 correct is
(1/10)*(1/10)*(1/10)*(1/10)*(1/10)
= (1/10)^5 or
= 1/100,000
so the prob of NOT getting all 5 correct
= 1  1/100,000 = 99999/100,000
so the odds in favour of getting all 5 correct is
1 : 99,999

Algebra 1  Zach, Thursday, November 12, 2009 at 9:36pm
Thanks
And I think you answered my question last time i posted, so thanks for keep on rollin'
:)

Algebra 1  Reiny, Thursday, November 12, 2009 at 10:07pm
welcome!
Answer This Question
Related Questions
 Stats  An instructor gives a test with 20 multiple choice questions. There are ...
 Math  Given a multiple choice test with 4 choices for each question and 17 ...
 statistics  A test consists of 12 multiple choice questions with 5 choices for ...
 Statistic  test consists of 10 multiple choice questions with five choices for ...
 Statistics  A multiple choice test has five choices. Therefore the probability ...
 statistics  A multiple choice test has 3 questions and each question has 3 ...
 math  Part A of your history test has 15 multiple choice questions. Each ...
 mathProbablity  A student is writing a multiple choice test consisting of 40 ...
 math  A multiplechoice test has 10 questions. Each question has 5 choices. If ...
 Algebra  A test has 15 questions worth 100 points in total. The test consists ...
More Related Questions