   Chapter 14.CR, Problem 39E ### Algebra and Trigonometry (MindTap ...

4th Edition
James Stewart + 2 others
ISBN: 9781305071742

#### Solutions

Chapter
Section ### Algebra and Trigonometry (MindTap ...

4th Edition
James Stewart + 2 others
ISBN: 9781305071742
Textbook Problem

# 25-42 ■ Probability These exercises involve probability.Zip Codes In the Zip + 4 postal code system, zip codes consist of nine digits.(a) How many different Zip + 4 codes are possible?(b) How many different Zip + 4 codes are palindromes? (A palindrome is a number that reads the same from left to right as right to left.)(c) What is the probability that a randomly chosen Zip + 4 code is a palindrome?

To determine

(a)

To find:

The number of different Zip+4 codes that are possible.

Explanation

Approach:

Zip+4 Codes consist of 9 digits. digits. since, there is no restriction. So there are 10 choices for the all the digit. Hence, the total number of Zip+4 codes that are possible is given is 109

To determine

(b)

To find:

The number of different Zip+4 codes that are palindrome.

To determine

(c)

To find:

The probability that a randomly chosen Zip+4 code is a palindrome.

### Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

#### The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started 