BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

The least value for n

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
User avatar
Master | Next Rank: 500 Posts
Posts: 157
Joined: Tue Oct 07, 2008 5:47 am
Thanked: 3 times

by PussInBoots » Mon May 04, 2009 4:45 pm
n questions, 2 answers and only one of them is correct.

If player guesses only, his chance of getting all n questions correct is (1/2)^n

(1/2)^n < 1/1000
(1/2)^10 = 1/1024
(1/2)^5 = 1/32
Top
Post new topic Post Reply
• Page 1 of 1