perplexus.info :: Probability : Probing the prob.

Probing the prob. (Posted on 2014-01-21)

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.

Submitted by Ady TZIDON

Rating: 3.0000 (1 votes)

Solution: (Hide)

p1= 17/45= .37777778
p2= 35/100= .35

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
re(3): 2nd question first (spoiler) rethink.	Ady TZIDON	2014-01-21 14:06:13
re(2): 2nd question first (spoiler) rethink.	Charlie	2014-01-21 12:53:11
solution	Charlie	2014-01-21 12:51:18
re: 2nd question first (spoiler) rethink.	Ady TZIDON	2014-01-21 10:38:47
2nd question first (spoiler)	Steve Herman	2014-01-21 10:25:18

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