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Bascule's Book (Posted on 2002-07-03) Difficulty: 5 of 5
Bascule is reading a book. What is the probability that the first digit of the page he is on is 1, 2, 3, 4 or 5?

a) obtain an expression
b) approximate a numerical value

See The Solution Submitted by Cheradenine    
Rating: 2.7500 (8 votes)

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Some Thoughts re: First Steps? | Comment 5 of 41 |
(In reply to First Steps? by TomM)

You also need some probability distribution over the number of pages in a book. In this case, p(n) would define the probability that Bascule is reading an n-page book. You can define a function f(n) which calculates the probability that the page number begins with 1, 2, 3, 4, or 5 for a book with n pages. The complete solution would be a summation of p(n) f(n) over all possible values of n.
  Posted by friedlinguini on 2002-07-03 13:07:27

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