All about
flooble

fun stuff

Get a free chatterbox

Free JavaScript

Avatars
perplexus
dot
info
Home
>
Probability
Probing the prob. (
Posted on 20140121
)
Chose at random two
distinct
decimal digits.
Denote them as
A & B
.
1. What is the probability that:
AB is less than A+B?
2. Same question, but with the word
"distinct"
erased.
See The Solution
Submitted by
Ady TZIDON
No Rating
Comments: (
Back to comment list
 You must be logged in to post comments.
)
2nd question first (spoiler)
 Comment 1 of 5
AB < (A + B) if A or B is 0 or 1, unless they are both 0.
Part 2)
Probability, if A and B can be the same =
This is 35 ways out of 100 = .35
Part 1)
Probability, if A and B are distinct =
34 ways out of 90 = .377..
I haven't checked this result, so I might need to be corrected
Posted by
Steve Herman
on 20140121 10:25:18
Please log in:
Login:
Password:
Remember me:
Sign up!

Forgot password
Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ

About This Site
Site Statistics
New Comments (1)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On
Chatterbox:
blackjack
flooble's webmaster puzzle
Copyright © 2002  2018 by
Animus Pactum Consulting
. All rights reserved.
Privacy Information