Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Random Variables
A random variable Z is a real valued function of the type Z: S → R on a sample space S. That means the function assigns a real number to every primitive event in the sample space. In other words, a random variable is a function mapping a sample space S t…
Question

We apply the binary search on a 17-element ordered array. Assume that a given
key appears in the array, and it is between the 5th element and the 13th element
(inclusive). How many comparisons do we need for the average-case efficiency?

 

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