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MA.7.DP.2.3 · Data Analysis and Probability

Theoretical Probability of a Simple Event: Sample FAST Questions

Students find the theoretical probability of an event related to a simple experiment by dividing the number of favorable outcomes by the total number of equally likely outcomes. They report the answer as a fraction, a decimal, or a percentage.

How the FAST tests this benchmark

FAST items are equation editor questions asking for the probability of an event and multiple choice items about compound descriptions like "not blue" or "an even number". The trap is putting the favorable count over the unfavorable count instead of over the total.

Skills students need

  • Find the probability of a single favorable outcome
  • Find the probability of an event covering several outcomes
  • Find the probability that an event does not happen
  • Write a probability as a fraction, a decimal, or a percentage

Try 6 real MA.7.DP.2.3 questions

These come straight from Algebro's 7th grade question bank, easiest first. Answer one, check it, then move to the next.

Question 1 of 6

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Question 1EasyEquation Editor
A bag contains 33 red marbles and 55 blue marbles. One marble is drawn at random. What is the theoretical probability of drawing a RED marble? Give your answer as a fraction.

Enter the number only. Do not include units like $, %, or ft²

Showcase extra: the real practice and quiz players do not have this button.

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MA.7.DP.2.3: Theoretical Probability Practice | Algebro