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9th Grade Probability Worksheet — Level 3 — Practice Set 3 — Answers

Answer sheet with worked solutions for the 9th Grade probability worksheet.

Success TutoringWorksheetsAnswer sheet9th Grade · Mathematics · Probability

9th Grade Probability Worksheet — Level 3 — Practice Set 3 — Answers

Write each probability as a fraction in simplest form.

1.A fair six-sided die is rolled. What is the probability of rolling a prime number?

Answer:

  1. Favorable outcomes: 3 out of 6
2.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
3.A bag has 5 red, 2 blue and 4 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 11
  2. P(blue) = 2/11 =
4.A fair six-sided die is rolled. What is the probability of rolling a number greater than 5?

Answer:

  1. Favorable outcomes: 1 out of 6
5.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
6.A bag has 5 red, 2 blue and 5 green marbles. One is chosen at random. What is the probability it is green?

Answer:

  1. Total marbles: 12
  2. P(green) = 5/12 =
7.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
8.A fair six-sided die is rolled. What is the probability of rolling a number greater than 4?

Answer:

  1. Favorable outcomes: 2 out of 6
9.A bag has 4 red, 6 blue and 3 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 13
  2. P(blue) = 6/13 =
10.A bag has 2 red, 6 blue and 2 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 10
  2. P(blue) = 6/10 =
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