8.11 Probability

A bag contains 5 yellow, 4 green, and 2 blue marbles. One marble is drawn and immediately put back in the bag. Then a second marble is drawn. Identify whether the events are independent or dependent. 

• Independent
• Dependent

You purchase a yellow gumball, eat it, and then purchase another yellow gumball.

Independent or dependent?

• Independent

• Dependent

Two cards are drawn from a standard deck of cards and no cards are returned to the deck. Identify whether the events are independent or dependent.

• Independent

• Dependent

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

Are these events independent or dependent?

• Dependent

• Independent

A coin and a number cube with the numbers 1 through 6 are tossed. What is the probability of the coin showing tails and the number cube showing the number 3? 

• 1/12
• 1/4
• 1/8
• 1/2

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.8

A jar contains:

2 green marbles

4 blue marbles

3 yellow marbles

2 black marbles

Find the probability of choosing a green, replacing it, and then choosing a yellow marble?

• 3.3%

• 6.6%

• 2.4%

• 5%

A bag of skittles contains:

6 red

5 green

4 yellow

What is the probability of choosing a red skittle, eating it, and then choosing another red skittle?

• 2/5

• 1/21

• 4/25

• 1/7

What is the probability of spinning a 2 and then a 3?

• 1/6

• 1/12

• 1/36

Ten cards numbered 1-10 are placed in a hat.

What is the probability of selecting a 4, keeping it, and then selecting a 9 or 10?

• 1/10

• 1/100

• 1/50

• 1/45

• 1/8

• 1/2

• 1/24

• 1/16