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# Determine whether each of the following random variables ## Problem 1E Chapter 2.4

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:

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

Step 5 of 6

##### ISBN: 9780073401331

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Determine whether each of the following random variables

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Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 2.4 - Problem 1e

Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 2.4 - Problem 1e