+0  
 
0
405
1
avatar

A multiple-choice test has 6 questions. Each question has 5 choices and only one of which is correct. If a student guesses the answer for each question find the probability that the students gets: exactly questions correct.

 

 

C(6,3) (.20)^3 * (.80)^3   = .08192  ≈  8.2%

Guest Dec 11, 2017
edited by Guest  Dec 11, 2017
 #1
avatar+17745 
+1

Your answer is the correct solution to the problems of getting exactly 3 questions correct.

geno3141  Dec 11, 2017

35 Online Users

avatar
avatar
avatar
avatar
avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.