Data Structures and Algorithms in Java
6th Edition
ISBN: 9781118771334
Author: Michael T. Goodrich
Publisher: WILEY
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Textbook Question
Chapter 3, Problem 20C
Give examples of values for a and b in the pseudorandom generator given on page 113 of this chapter such that the result is not very random looking, for n = 1000.
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What is Benford’s Law?
Benford’s Law involves looking at the first digit of a series of numbers. For example, suppose that you were to use a random number generator to generate integers in the range of 100 to 999 and you looked at how often the number begins with 1, how often it begins with 2, and so on. Any decent random number generator would spread the answers out evenly among the 9 regions, so we’d expect to see each digit about one-ninth of the time (11.1%). But with a lot of real-world data, we see a very different distribution.
The expected distribution under Benford’s Law is shown below:1: 30.1%, 2: 17.6%, 3: 12.5%, 4: 9.7%, 5: 7.9%, 6: 6.7%, 7: 5.8%, 8: 5.1%, 9: 4.6%
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Chapter 3 Solutions
Data Structures and Algorithms in Java
Ch. 3 - Prob. 1RCh. 3 - Write a Java method that repeatedly selects and...Ch. 3 - Prob. 3RCh. 3 - The TicTacToe class of Code Fragments 3.9 and 3.10...Ch. 3 - Prob. 5RCh. 3 - Prob. 6RCh. 3 - Prob. 7RCh. 3 - Prob. 8RCh. 3 - Prob. 9RCh. 3 - Prob. 10R
Ch. 3 - Prob. 11RCh. 3 - Prob. 12RCh. 3 - Prob. 13RCh. 3 - Prob. 14RCh. 3 - Prob. 15RCh. 3 - Prob. 16RCh. 3 - Prob. 17CCh. 3 - Prob. 18CCh. 3 - Prob. 19CCh. 3 - Give examples of values for a and b in the...Ch. 3 - Suppose you are given an array, A, containing 100...Ch. 3 - Write a method, shuffle(A), that rearranges the...Ch. 3 - Suppose you are designing a multiplayer game that...Ch. 3 - Write a Java method that takes two...Ch. 3 - Prob. 25CCh. 3 - Prob. 26CCh. 3 - Prob. 27CCh. 3 - Prob. 28CCh. 3 - Prob. 29CCh. 3 - Prob. 30CCh. 3 - Prob. 31CCh. 3 - Prob. 32CCh. 3 - Prob. 33CCh. 3 - Prob. 34CCh. 3 - Prob. 35CCh. 3 - Write a Java program for a matrix class that can...Ch. 3 - Write a class that maintains the top ten scores...Ch. 3 - Prob. 38PCh. 3 - Write a program that can perform the Caesar cipher...Ch. 3 - Prob. 40PCh. 3 - Prob. 41PCh. 3 - Prob. 42PCh. 3 - Prob. 43P
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