FST 6.2 Principles of Probability

You roll a 10-sided die. What is the probability of rolling a number that is not a multiple of 3?

• 3/10

• 7/10

• 1/3

• 1/7

You roll a 10-sided die. What is the probability of rolling a 2 or an odd number?

• 3/5

• 1/5

• 2/5

• 7/10

You roll a 10-sided die. What is the probability of rolling a multiple of 3 or an even number?

• 4/5

• 3/5

• 7/10

• 1

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

Which of the following shows how to determine P(diamond or face card)?

• 13/52 + 12/52 - 3/52
• 3/52 + 13/52 -12/52
• 3/52 + 12/52 - 13/52
• 1/13 + 3/52 - 1/4

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 draw one card from a standard deck, what is the probability of drawing a spade or a red card?

• 13/52
• 26/52
• 39/52
• Not possible

If you choose 1 scoop of ice cream from 12 flavors and any 1 topping from a choice of 8, how many different ice-cream sundaes can you make?

• 58
• 96
• 20
• 192

Which of the following shows how to determine when a die is rolled P(multiple of 2 or a multiple of 3)?

• 2/6 + 1/6 - 3/6
• 4/6 + 2/6 - 1/6
• 3/6 + 2/6 - 1/6
• 5/6 + 1/6 - 3/6

Which of the following shows how to determine P(skateboard or rollerblades)?

• 48/100 + 42/100 - 39/100
• 39/100 + 3/100 - 49/100
• 49/100 + 9/100 - 3/100
• 9/100 + 3/100 - 39/100