Mean of Random Variable

1. If three coins are tossed, which is NOT a possible value of the random variable for the number of tails?

• 1

• 2

• 3

• 4

Which of the following is a discrete random variable?

• Length of electrical wires

• Number of pencils in a box

• Amount of sugar used in a cup of coffee

• Voltage of car batteries

How many ways can a "double" come out when you roll two dice?

• 2

• 4

• 6

• 8

It is a numerical quantity that is assigned to the outcome of an experiment.

• random variable

• variable

• probability

• probability distribution

If two coins are tossed once, which is NOT a possible value of the random variable for the number of heads?

• 0

• 1

• 2

• 3

Classify the following random variables as discrete or continuous.

Write the word discrete or continuous.

The weight of the professional wrestlers

Classify the following random variables as discrete or continuous.

Write the word discrete or continuous.

The number of winners in lotto for each day.

Classify the following random variables as discrete or continuous.

Write the word discrete or continuous.

 

The speed of a car

Classify the following random variables as discrete or continuous.

Write the word discrete or continuous.

The area of lots in an exclusive subdivision

Classify the following random variables as discrete or continuous.

Write the word discrete or continuous.

   The number of dropouts in a school per district