18.5 Day 2

The outcome of one event does affect the outcome of the other event.

• independent event

• dependent event

The outcome of one event does not affect the outcome of the other event.

• independent event

• dependent event

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

• independent

• dependent

Pablo chooses a colored marble from a mixed bag and writes down the color. Pablo leaves it out and then draws another.

• Independent
• Dependent

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 independent or dependent?

• Independent

• Dependent

Two marbles are drawn from a container in such a way that the first marble drawn is replaced before selecting the second marble. Does the outcome of the first draw affect the outcome of the second?

• Yes
• No

There are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag. If Joe picks 2 marbles one after the other without replacement, then what is the probability that both are red in color?

• 2/5

• 30/210

• 30/225

• 1/10

There are 5 red roses, 3 yellow roses, and 8 white roses in a tray. If Stephanie picked 2 roses one after the other without replacing, then what is the probability of picking a white rose first and a red rose next?

• 40/256

• 5/6

• 40/240

• 2/3

A basket contains 5 purple pencils and 9 brown pencils. If two pencils are picked at random one after the other without replacement, then what is the probability that both the pencils are purple?

• 9/182

• 20/182

• 2/91

• 20/196

What is the probability of rolling an even number on the first roll of a number cube and rolling an odd number on the second roll?

• 1/6

• 1

• 1/8

• 9/36