Intro to Probability

Using a regular 52 card deck, what is the probability of randomly drawing a red or a black card?

• 1/26

• 1/13

• 1/2

• 1

Using a regular 52 card deck, what is the probability of randomly drawing a red Ace?

• 1/52

• 1/26

• 1/13

• 1/4

Which of the following is most likely to occur?

• Rolling a number greater than 4 on a ten-sided die, numbered from 1 to 10.

• Spinning a spinner divided into five equal-sized sections colored red/green/yellow/blue/purple and landing on green.

• Winning a raffle that sold a total of 100 tickets, if you buy 34 tickets.

Which of the following is least likely to occur?

• Rolling a 3 on a twelve-sided die, numbered from 1 to 12.

• Spinning a spinner divided into four equal-sized sections colored red/green/yellow/blue and landing on red.

• Reaching into a bag full of 64 strawberry chews and 16 cherry chews without looking and pulling out a strawberry chew.

What is the probability of rolling a number less than 3 on a 6-sided die?

• 1/6

• 1/3

• 1/2

• 2/3

If you flip a coin and roll a 6-sided die, what is the probability of flipping heads?

• 1/12

• 1/8

• 1/4

• 1/2

If you flip a coin and roll a 6-sided die, what is the probability of flipping a heads and rolling a 2?

• 1/12

• 1/6

• 1/3

• 1/2

If you flip a coin and roll a 6-sided die, what is the probability of flipping a tails and rolling an odd number?

• 1/12

• 1/4

• 1/3

• 1/2

If you flip a coin and roll a 6-sided die, what is the probability of flipping a heads and rolling a number greater than 5?

• 1/12

• 1/6

• 1/4

• 1/3

Gabriel rolls a standard six-sided die, numbered from 1 to 6. Which word or phrase describes the probability that he will roll a 2?

• certain

• an equal or 50-50 chance

• unlikely

• likely