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Evaluate probabilities (Posted on 2016-01-26) Difficulty: 2 of 5
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
Solutionsimple understanding, and randomization proceduresCharlie2016-01-26 11:37:16
Solutionre: Counting, Counting (spoiler) - decimalsJer2016-01-26 10:27:10
SolutionCounting, Counting (spoiler)Steve Herman2016-01-26 09:15:13
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