Calculate the Probability

A bag contains 9 green marbles, 5 yellow marbles and 6 red marbles.  You choose one marble.   What is the probability of selecting a green or red marble?  Do you add or multiply probabilities?

• Add

• Multiply

What is the probability of spinning green?

• 0

• 1/4

• 1/2

• 3/4

If you roll one die, what is the probability of getting an odd number or a 4?  Are the events inclusive or mutually exclusive?

• Not Mutually Exclusive 

• Mutually exclusive

What is the probability of selecting an orange candy?

• 0%

• 25%

• 50%

• 100%

A coin is tossed and a number cube is rolled. Find the probability, P(heads and 7).

• 1/14

• 1/2

• 0

• 1/7

Identify if the events are independent or dependent, then calculate the probability. Leave as a fraction.

Identify if the events are independent or dependent, then calculate the probability. Leave as a decimal.

Identify if the events are mutually exclusive or not mutually exclusive, then calculate the probability. Leave as a fraction.

Identify if the events are mutually exclusive or not mutually exclusive, then calculate the probability. Leave as a percentage.

What is the probability that a randomly selected student wants to be a therapist given that the student has a fear of snakes? Leave as a fraction.