Probability

If you flip a coin two times, is it independent or dependent probability?

• Independent

• Dependent

If you draw out a red marble, keep it, then draw out a blue marble, is it independent or dependent probability?

• Independent

• Dependent

You spin this spinner 3 times.

Find the probability of these 3 events.

P(red, odd, 3)

• 1/216

• 1/72

• 1/12

• 1/36

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

Clara picks a marble at random, puts it back, and then picks another marble at random.

• Dependent

• Independent

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

Two events are mutually exclusive if:

• they cannot happen at the same time

• they can happen at the same time

• they always happen 

• they never happen 

A bag contains some red-colored and some blue-colored marbles. First a red-colored marble is drawn and then, without replacing the first marble, a blue-colored marble is drawn. Are the two events dependent or independent?

• Independent

• Dependent

What is the probability of selecting an orange candy?

• 0%

• 25%

• 50%

• 100%