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Back to Tutor Intake Assessment: Approximate the probability of a chance event by collecting data

7.SP.C.6 Tutor Intake -- Experimental Probability and Long-Run Relative Frequency

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without a calculator. If you're unsure, give your best try — the goal is
to find what to work on together, not to grade you.

Grade 7·8 problems·~11 min·Common Core Math - Grade 7·standard·7-sp-c-6
Work through problems with immediate feedback
A

Concepts

1

A spinner is spun 50 times and lands on "Blue" 18 times. What is
the experimental probability of landing on Blue?

2

What does it mean to say that experimental probability is based
on "long-run relative frequency"?

3

A die is rolled 60 times and shows a 4 on 12 of those rolls.
Which of these correctly reports the experimental probability of
rolling a 4?

B

Procedures

1

A spinner is spun 120 times. It lands on Red 42 times, Blue 38
times, and Green 40 times. What is the experimental probability
of landing on Red? Enter your answer as a decimal, rounded to
two decimal places.

2

The theoretical probability of rolling a 4 on a standard
six-sided die is 1/61/6. If the die is rolled 180 times, how many
4's would you expect, on average?

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