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8th Grade Probability Worksheet — Level 3 — Answers

Answer sheet with worked solutions for the 8th Grade probability worksheet.

Success TutoringWorksheetsAnswer sheet8th Grade · Mathematics · Probability

8th Grade Probability Worksheet — Level 3 — Answers

Write each probability as a fraction in simplest form.

1.A bag has 2 red, 6 blue and 5 green marbles. One is chosen at random. What is the probability it is blue?

Answer:

  1. Total marbles: 13
  2. P(blue) = 6/13 =
2.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
3.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
4.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

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

Answer:

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

Answer:

  1. P(not rain) = 1 − =
8.The probability that it rains tomorrow is . What is the probability that it does not rain?

Answer:

  1. P(not rain) = 1 − =
9.A bag has 3 red, 5 blue and 6 green marbles. One is chosen at random. What is the probability it is red?

Answer:

  1. Total marbles: 14
  2. P(red) = 3/14 =
10.A bag has 2 red, 1 blue and 4 green marbles. One is chosen at random. What is the probability it is green?

Answer:

  1. Total marbles: 7
  2. P(green) = 4/7 =
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