perplexus.info :: Probability : Evaluate probabilities

Evaluate probabilities (Posted on 2016-01-26)

Scanning a number from left to right, if the next digit is greater in value than the preceeding digit, we say that the number is strictly increasing: 1589, 3679, and 1348 are examples of 4-digit numbers with this property.

Given a certain number is strictly increasing, what is the probability that it contains

a. exactly 6 digits?
b. 6 digits or more?

No Solution Yet Submitted by Ady TZIDON

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Subject	Author	Date
simple understanding, and randomization procedures	Charlie	2016-01-26 11:37:16
re: Counting, Counting (spoiler) - decimals	Jer	2016-01-26 10:27:10
Counting, Counting (spoiler)	Steve Herman	2016-01-26 09:15:13

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