Exploring Chance and Probability

Johnny will spin each spinner one time.

Which statement is true about Johnny's spins?

• The arrow is less likely to land on a green section in Spinner A than in Spinner B.

• The arrow is equally likely to land on a yellow section in Spinner A than in Spinner B.

• The arrow is more likely to land on a blue section in Spinner A than in Spinner B.

• The arrow is more likely to land on a red section in Spinner A than in Spinner B.

You have a bag with 5 red marbles, 3 blue marbles, and 2 green marbles. If you pick one marble at random, what is the probability that it is blue?

In a class of 30 students, 18 are girls and 12 are boys. If a student is chosen at random, what is the probability that the student is a boy?

Which of the following events is more likely to happen?

• Rolling a 6 on a standard six-sided die

• Flipping a coin and getting heads

• Drawing a red card from a standard deck of 52 playing cards

• Picking a day of the week that starts with 'T'

If you roll two six-sided dice, what is the probability that the sum of the numbers is 7?

A spinner is divided into 4 equal sections coloured red, blue, green, and yellow. What is the probability of the spinner landing on red or blue?

If you have a standard deck of 52 playing cards, what is the probability of drawing a Queen?

A jar contains 10 red, 15 blue, and 5 green jellybeans. If you pick one jellybean at random, what is the probability that it is not green?

Which of the following has the highest probability?

• Drawing an Ace from a standard deck of 52 playing cards

• Rolling an even number on a six-sided die

• Picking a vowel from the English alphabet

• Flipping two coins and getting two heads

If you flip a coin three times, what is the probability of getting exactly two heads?