PROBABILITY

PROBABILITY

Multiple Choice

What is the probability of something that is CERTAIN TO HAPPEN?

• 1

• 2

• 0

Multiple Choice

What is the probability of something that is IMPOSSIBLE TO HAPPEN?

• 0

• 1

• 100%

Multiple Choice

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

• 3/10

• 3/9

• 1/9

• 1/3

Multiple Choice

If a stone is dropped at random on the arrangement of tiles shown, what is the probability the stone lands on a black tile?

• 5/9
• 4/9
• 1/2
• 1/9

Multiple Choice

Find the probability of rolling a 7 on a single die.

• 1/6

• 7/6

• 0

• 7/7

Multiple Choice

If you choose from the following M & M colors, what is the probability that you choose blue?
5 green
6 yellow
8 blue
7 brown

• 8/26
• 4/13
• 8/25
• 1/3

Multiple Choice

The spinner is divided into eight equal parts. Find the theoretical probability of landing on the given section of the spinner.P(white)=

• 1/8
• 5/8
• 7/8
• 3/7

Multiple Choice

If you roll one die, what is the probability of getting an even number or a multiple of 3? Are the events mutually exclusive or not?

• Not mutually exclusive

• Mutually exclusive

Multiple Choice

If you are picking a card randomly from a deck of cards, the events of picking an ace and picking a ‘3’ are mutually exclusive.

• True

• False

Multiple Choice

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

Multiple Choice

When rolling a single die, the events of rolling an even number and rolling a ‘5’ are mutually exclusive.

• True

• False

Multiple Choice

6. Rolling a prime number and rolling an even number on a normal six-sided die are

• Mutually exclusive

• Not mutually exclusive

If a set of mutually exclusive events covers all possible outcomes then their sum of probabilities is 1

Example: Arif throws a biased coin. The probability of getting tails is 0.7. Therefore, the probability of getting heads is 1-0.7=0.3

Multiple Choice

A packet of sweets contain strawberry, orange, mango, and apricot flavors. Randy picks a sweet out of the packet at random. If the probability of getting strawberry flavor is 0.32, the probability of getting orange flavor is 0.2, and the probability of getting apricot flavor is 0.25.

What is the probability that he gets mango sweet?

• 0.21

• 0.23

• 0.33

• 1

Multiple Choice

Deion has two bags of marbles. In the bag labeled ‘A’, he has 3 green, 4 blue and 10 yellow marbles. In the bag labeled ‘B’, he has 13 green, 5 blue, and 12 yellow marbles. Deion wants the bag with the highest probability of selecting a blue marble. Which of the following statements is true?

• It does not matter which bag he chooses because the probabilities are the same.
• He should choose Bag B because there are fewer blue marbles.
• He should choose Bag A because the probability of selecting a blue marble is higher.
• He should choose Bag B because the probability of selecting a blue marble is higher.

Multiple Choice

Find the probability of drawing a 10 from a standard deck of 52 cards.

• 4 out of 52
• 13 out of 52
• 13/52
• 4/52