Probability

What is the probability of landing on the color blue on the spinner?

• 3/3
• 1

• 3/12 or 1/4
• 3/9 or 1/3

What is the probability of the spinner landing on red?

• 5/12
• 7/12

• 5/5
• 5/10 or 1/2

A bag has 3 red marbles, 2 blue and 4 green and 1 yellow. What is the theoretical probability of pulling a red?

• 3/10

• 3/9

• 1/10

• 1/9

A box contains 4 red pencils, 6 blue pencils, 5 black pencils, and 3 green pencils. The best description of the likelihood of selecting a blue pencil at random from the box is ​​​ (a)   . ​ ​

• unlikely
• impossible
• equally likely
• likely
• certain

Probability ranges from 0 (impossible) to 1 (certain).

• true

• false

Probability can be written as ...

• a fraction
• a decimal
• a percent
• all of the above

Which of the following best describes the likelihood of the spinner landing on a number less than 6?

• impossible

• unlikely

• equally likely

• likely

• certain

If I flip a coin 10 times, how many times should I get heads?

• 1
• 10
• 3
• 5

Mutually exclusive events are those that

• happen at the same time

• cannot happen at the same time

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