Back to Understand that the probability of a chance event is a number between 0 and 1 — Problem 5 · Task Set 21
Understanding Probability: The 0-to-1 Scale
Express probability answers as fractions, decimals, or percents. When asked to classify, use the labels: impossible, unlikely, equally likely/unlikely, likely, or certain.
Grade 7·21 problems·~35 min·Common Core Math - Grade 7·standard·7-sp-c-5
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A
Fluency
1.
A bag contains 3 red marbles and 1 blue marble. You pick one marble without looking. What is the probability of picking a red marble?