Probability and Factoring

Tim wil spin the spinner below once. On which colour is the spinner most likely to stop on?

• Orange

• Blue

• Red

• Green

A bag contains 20 pink candies, 8 red candies, and 12 green candies. Without looking, Sarah pulls out a piece of candy. Which colour of candy is least likely to be pulled out?

• Pink

• Red

• Green

A likely chance event is closer to what number?

• 0
• 1
• .5
• 100

An unlikely chance event is closer to what number?

• 0
• 1
• 2
• 3

A piggy bank contains 4 quarters, 18 dimes, 10 nickels, and 8 pennies. A coin is chosen at random, not replaced, then another is chosen. Find each probability.

P (penny, then dime).

• 1/8

• 9/100

• 6/65

• 17/195

Find the probability of each set of independent events.

drawing a black checker from a bag of 6 black checkers and 4 red checkers, replacing it, and drawing another black checker.

• 2/3

• 9/25

• 2/5

• 3/5

If you are picking a card randomly from a deck of cards, the events of picking a jack and picking a heart are mutually exclusive.

• True

• False

If you roll one die, what is the probability of getting an odd number or a 4?

• 2/3
• 1/3
• 1/2
• 1/6

Which of the following shows how to determine P(shaded number or number less than five)?

• 4/8 + 4/8 - 2/8
• 4/9 + 2/8 - 4/8
• 4/8 + 6/8 + 2/8
• 2/8 + 4/8 - 4/8

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

• Dependent
• Independent