Q1 W1 STAT

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

Which of the following is a discrete random variable?

• Length of wire ropes

• Number of soldiers in the troop

• Amount of paint used in repainting the building

• Voltage of car batteries

Which formula gives the probability distribution shown by the table?

• P(X) = X

• P(X) = 1/X

• P(X) = X/3

• P(X) = X/5

How many RESULTS are there in tossing two coins once?

• 4

• 3

• 2

• 1

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

• random variable

• variable

• probability

• probability distribution

Classify the following random variables as discrete or continuous.

The weight of the professional wrestlers

• Discrete

• Continuous

Classify the following random variables as discrete or continuous.

The number of winners in lotto for each day

• Discrete

• Continuous

Classify the following random variables as discrete or continuous.

The area of lots in an exclusive subdivision

• Discrete

• Continuous

Classify the following random variables as discrete or continuous.

The speed of a car

• Discrete

• Continuous

Classify the following random variables as discrete or continuous.

The number of dropouts in a school per district

• Discrete

• Continuous