Could you please explin how is (0.9)^21 = 0.026
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Could you please explin how is (0.9)^21 = 0.026
Expert Solution
Step 1
Apologies for the inconvenience.
The correct answer is:
To calculate this probability, you can use the formula:
P(X = k) = nCk * p^k * (1-p)^(n-k)
where:
- n is the total number of users (21 in this case)
- k is the number of users transmitting at a given time
- p is the probability that any given user is transmitting (0.1 in this case)
- nCk is the number of ways to choose k users out of n
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