7.DS.C.6: Develop and use probability models to find probabilities of events and compare them to observed results. a. Create a uniform probability model for situations where outcomes are equally likely and use the model to calculate the probability of an event. b. Create a probability model using observed frequencies and use it to estimate the probability of an event. c. Compare probabilities from a model to observed data and explain possible reasons for any differences.

Develop and use probability models to find probabilities of events and compare them to observed results. a. Create a uniform probability model for situations where outcomes are equally likely and use the model to calculate the probability of an event. b. Create a probability model using observed frequencies and use it to estimate the probability of an event. c. Compare probabilities from a model to observed data and explain possible reasons for any differences.

Example Problems

You flip a fair coin.

What is

P(\text{heads})

?

You roll a fair 6-sided die.
What is

P(\text{roll} > 6)

?

You roll a fair 6-sided die.
What is

P(\text{roll an even number})

?

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