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A survey of cars on a certain stretch of highway during

Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi ISBN: 9780073401331 38

Solution for problem 5E Chapter 2.4

Statistics for Engineers and Scientists | 4th Edition

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Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi

Statistics for Engineers and Scientists | 4th Edition

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Problem 5E

A survey of cars on a certain stretch of highway during morning commute hours showed that 70% had only one occupant, 15% had 2, 10% had 3, 3% had 4, and 2% had 5. Let Xrepresent the number of occupants in a randomly chosen car.

a. Find the probability mass function of X.

b. Find P(X  ≤  2).

c. Find P(X  > 3).

d. Find μX.

e. Find σX

Step-by-Step Solution:

Solution:

Step 1of 3 :

A survey of cars on a certain stretch of highway during morning commute hours showed that 70% had only one occupant 15% had 2, 10% had 3, 3% had 4, and 2% had 5.if X represent the number of occupants in a randomly chosen car.

We have to find

  1. The probability mass function of X.
  2. P(X)
  3. P(X>3)
  4. E(X)
  5. .


Step 2 of 3

Chapter 2.4, Problem 5E is Solved
Step 3 of 3

Textbook: Statistics for Engineers and Scientists
Edition: 4
Author: William Navidi
ISBN: 9780073401331

The full step-by-step solution to problem: 5E from chapter: 2.4 was answered by , our top Statistics solution expert on 06/28/17, 11:15AM. This full solution covers the following key subjects: Find, mass, chosen, commute, during. This expansive textbook survival guide covers 153 chapters, and 2440 solutions. This textbook survival guide was created for the textbook: Statistics for Engineers and Scientists , edition: 4. The answer to “A survey of cars on a certain stretch of highway during morning commute hours showed that 70% had only one occupant, 15% had 2, 10% had 3, 3% had 4, and 2% had 5. Let Xrepresent the number of occupants in a randomly chosen car.a. Find the probability mass function of X.________________b. Find P(X ? 2).________________c. Find P(X > 3).________________d. Find ?X.________________e. Find ?X” is broken down into a number of easy to follow steps, and 64 words. Statistics for Engineers and Scientists was written by and is associated to the ISBN: 9780073401331. Since the solution to 5E from 2.4 chapter was answered, more than 2806 students have viewed the full step-by-step answer.

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A survey of cars on a certain stretch of highway during