exploring random variable

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

• 3/10
• 3/9
• 1/9
• 1/3

If you were to roll the die one time what is the probability of it landing on a 2?

• 2 out of 6
• 2 out of 2
• 1 out of 6
• 1 out of 1

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

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

• random variable

• variable

• probability

• probability distribution

The number of winners in lotto for each day

• discrete

• continuous

The area of lots in an exclusive subdivision

• discrete

• continuous

The speed of a car

• discrete

• continuous

The number of dropouts in a school per school

• discrete

• continuous

The weight of the professional wrestlers

• discrete

• continuous