8. Probability & Statistics

8.01 Theoretical probability

8.02 Experimental probability

Investigation: Conducting experiments

Investigation: Theoretical probability

8.03 Expected outcomes

8.04 Probability of compound events

Investigation: Obtaining representative data

8.05 Sampling techniques

8.06 Comparative inferences

United States of America UT

Grade 7

8.03 Expected outcomes

Interactive practice questions

A spinner is divided equally into $5$5 sections, but $2$2 of them are colored $white$ .

a

What is the probability of landing on $white$ ?

b

If the spinner is spun $685$685 times, how many times would you expect it to land on $white$ ?

Easy

1min

$18$18 standard six-sided dice are rolled.

Easy

1min

$260$260 standard six-sided dice are rolled.

Easy

1min

If $Maria$ rolls a die $48$48 times, how many $2$2s would she expect to come up?

Easy

< 1min

Outcomes

7.SP.7

Develop a probability model and use it to find probabilities of events; compare probabilities from a model to observed frequencies; and if the agreement is not good, explain possible sources of the discrepancy.

7.SP.7.a

Develop a uniform probability model by assigning equal probability to all outcomes, and use the model to determine probabilities of events.

7.SP.7.b

Develop a probability model (which may not be uniform) by observing frequencies in data generated from a chance process.

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