8.11 Recap

There are two bags of wooden blocks which are all the same size and shape. Bag #1 has 3 blue and 1 orange block. Bag #2 has 3 red and 5 green blocks. Which of the following best describes dependent events?

• Randomly selecting one block from Bag #2, not replacing the block, then randomly selecting one block from Bag #1.
• Randomly selecting one block from Bag #1, replacing the block, then randomly selecting one block from Bag #2.
• Randomly selecting one block from Bag #2, not replacing the block, then randomly selecting another block from Bag #2.
• Randomly selecting one block from Bag #1, replacing the block, then randomly selecting another block from Bag #1.

Kayla has some colored marbles that are the same size and shape. Use the information below to determine which is closest to the probability that Kayla will randomly select a marble that is NOT red, replace it, then randomly select a marble that is yellow?

• 9%
• 26%
• 4%
• 61%

A spinner has five equal sections labeled A, B, C, D, and E. A fair coin has faces labeled heads and tails. Carlos will spin the arrow of the spinner and flip the coin one time each. What is the probability the arrow will land on the section labeled A and the coin will land on heads?

• 2/7
• 1/10
• 1/7
• 7/10

A drawer contains 3 forks, 4 spoons, and 3 knives. One example of independent events using this drawer is randomly selecting a spoon, ____________________, and then randomly selecting another spoon.

• not replacing it
• replacing it

A drawer contains 3 forks, 4 spoons, and 3 knives. What is the probability of randomly picking a spoon, returning it to the drawer, and then selecting another spoon?

• 8%
• 12%
• 16%
• 20%

Rodney has colored cards that are the same size and shape. He has 5 blue cards, 12 red cards, and 8 green cards. What is the probability that Rodney will randomly choose a blue card, not replace it, then randomly select a red card? Which number line represents this probability?

• 
• 
• 
• 

You must select ALL correct answers. Select all of the independent events. (Assume all events are random.)

• A spinner with 4 sections is spun and a coin is flipped.
• Two six-sided number cubes are rolled.
• A letter from the alphabet is chosen and a number between 0 and 10 is chosen.
• A six-sided number cube is rolled and a coin is flipped.
• A card is drawn, not replaced, and then a second card is drawn.

Flora and Gabe will randomly select from a bag of candy containing 6 grape, 8 cherry, and 6 lime Jolly ranchers. Which of the following has the greatest probability of occurring?

• Flora will pick a grape candy, not replace it, and then pick a cherry candy.
• Gabe will pick a lime candy, replace it, and then pick another lime candy.
• Gabe will pick a cherry candy, not replace it, and then pick a lime candy.
• Flora will pick a cherry candy, replace it, and then pick another cherry candy.

During the basketball game, the cheerleaders sold 50 scratch tickets. There are 2 winning scratch tickets and 48 that are not winners. What is the probability that neither the first not the second scratch ticket SOLD are winners?

• 90%
• 92%
• 94%
• 96%