Probability as a Fraction

Question 1

Which of the following correctly states the probability of rolling a 6 on a fair six‑sided die and explains why?

Accepted Answer

The probability is 1/6 because there is one favorable outcome (rolling a 6) out of six equally likely outcomes.

Answer

The probability is 1/4 because a die has four sides.

Answer

The probability is 1/2 because half of the numbers on a die are even.

Answer

The probability is 1/5 because there are five numbers that are not 6.

Question 2

A board game has a spinner divided into six equal sections. Each section shows a different animal: lion, tiger, bear, elephant, giraffe, and zebra. If you spin the spinner once, what fraction best describes the chance that it lands on the zebra, and why?

Accepted Answer

1/6, because only one of the six equally‑likely sections shows a zebra

Answer

2/6, because there are two sections that look like a zebra

Answer

1/3, because the spinner is divided into two groups of three animals

Answer

1/5, because there are five other animals besides the zebra

Question 3

A clear jar holds 9 marbles: 3 red, 3 blue, and 3 green. They were placed in the jar one after another, and the very first marble put in was a red one. If you close your eyes and pick one marble at random, what is the probability that the marble you pick is that exact first marble?

Accepted Answer

1/9

Answer

1/3

Answer

2/9

Answer

1/6

Try three questions

Which of the following correctly states the probability of rolling a 6 on a fair six‑sided die and explains why?

A board game has a spinner divided into six equal sections. Each section shows a different animal: lion, tiger, bear, elephant, giraffe, and zebra. If you spin the spinner once, what fraction best describes the chance that it lands on the zebra, and why?

A clear jar holds 9 marbles: 3 red, 3 blue, and 3 green. They were placed in the jar one after another, and the very first marble put in was a red one. If you close your eyes and pick one marble at random, what is the probability that the marble you pick is that exact first marble?

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