/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q20 In Exercises 5鈥�36, express all... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 4: Q20 (page 175)

In Exercises 5鈥�36, express all probabilities as fractions.

FedEx Deliveries With a short time remaining in the day, a FedEx driver has time to make deliveries at 6 locations among the 9 locations remaining. How many different routes are possible?

Short Answer

Expert verified

The number of different routes possible is equal to 60480.

Step by step solution

01

Given information

Six deliveries at six different locations are to be made by the FedEx driver.

The different possible routes are to be computed.

02

Permutation

The total number of possible ways to choose r units from n units, when the order of the arrangements is considered, is computed using permutation.

Prn=n!n-r!r!

03

Calculation

The total number of locations is equal to 9.

The number of deliveries to be made is 6.

The total number of possible routes that can be taken to make the deliveries is equal to:

9P6=9!9-6!6!=60480

Therefore, the number of different routes possible to make the six deliveries is equal to 60480.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Subjective Probability Estimate the probability that the next time you turn on a light switch, you discover that a bulb does work.

In Exercises 9鈥�20, use the data in the following table, which lists drive-thru order accuracy at popular fast food chains (data from a QSR Drive-Thru Study). Assume that orders are randomly selected from those included in the table.

惭肠顿辞苍补濒诲鈥檚

Burger King

奥别苍诲测鈥檚

Taco Bell

Order Accurate

329

264

249

145

OrderNotAccurate

33

54

31

13

Fast Food Drive-Thru Accuracy If one order is selected, find the probability of getting an order that is not accurate or is from 奥别苍诲测鈥檚. Are the events of selecting an order that is not accurate and selecting an order from 奥别苍诲测鈥檚 disjoint events?

In Exercises 21鈥�24, refer to the sample data in Table 4-1, which is included with the Chapter Problem. Assume that 1 of the 555 subjects included in Table 4-1 is randomly selected.


Positive Test Result

(Test shows drug use)

Negative Test Result

(Test shows no drug use)

Subject Uses Drugs

45 (True Positive)

5 (False Negative)

Subject Does Not Use drugs

25 (False Positive)

480 (True Negative)

Drug Testing Job Applicants Find the probability of selecting someone who uses drugs. Does the result appear to be reasonable as an estimate of the 鈥減revalence rate鈥� described in the Chapter Problem?

Finding Complements. In Exercises 5鈥�8, find the indicated complements.

LOL A U.S. Cellular survey of smartphone users showed that 26% of respondents answered 鈥測es鈥� when asked if abbreviations (such as LOL) are annoying when texting. What is the probability of randomly selecting a smartphone user and getting a response other than 鈥測es鈥�?

In Exercises 29 and 30, find the probabilities and indicate when the 鈥�5% guideline for cumbersome calculations鈥� is used.

Medical Helicopters In a study of helicopter usage and patient survival, results were obtained from 47,637 patients transported by helicopter and 111,874 patients transported by ground (based on data from 鈥淎ssociation Between Helicopter vs Ground Emergency Medical Services and Survival for Adults with Major Trauma,鈥� by Galvagno et al., Journal of the American Medical Association, Vol. 307, No. 15).

a. If 1 of the 159,511 patients in the study is randomly selected, what is the probability that the subject was transported by helicopter?

b. If 5 of the subjects in the study are randomly selected without replacement, what is the probability that all of them were transported by helicopter
See all solutions

Recommended explanations on Math Textbooks

Discrete Mathematics

Read Explanation

Geometry

Read Explanation

Logic and Functions

Read Explanation

Applied Mathematics

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Decision Maths

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.