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Determine whether each of the following random variables

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

Problem 1E 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 1E

Determine whether each of the following random variables is discrete or continuous.

a. The number of heads in 100 tosses of a coin.

b. The length of a rod randomly chosen from a day's production.

c. The final exam score of a randomly chosen student from last semester's engineering statistics class.

d. The age of a randomly chosen Colorado School of Mines student.

e. The age that a randomly chosen Colorado School of Mines student will be on his or her next birthday.

Step-by-Step Solution:

Answer

Step 1 of 6</p>

Discrete random variable means which can be measurable by positive integers

Example X=0,1,2,3

Continuous random variable means which can take any value between the given range

Example X=4.2 in the range (4,6)

Step 2 of 6</p>

a) The no. of heads in 100 tosses of coins is representing the positive integers 0,1,2,........100

   

   So the no. of heads  in 100 tosses of coins is discrete random variable

Step 3 of 6</p>

b) The length of the rod from a day's production value will be in the given interval

 

    So, The length of the rod from a day's production is Continuous random variable

Step 4 of 6

Chapter 2.4, Problem 1E is Solved
Step 5 of 6

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

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Determine whether each of the following random variables

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