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STANDARDS

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US-VA

Math

Virginia Math

Grade 7: Probability and Statistics

7.PS.1

The student will use statistical investigation to determine the probability of an event and investigate and describe the difference between the experimental and theoretical probability.

7.PS.1.a

Determine the theoretical probability of an event.

7.PS.1.b

Given the results of a statistical investigation, determine the experimental probability of an event.

7.PS.1.c

Describe changes in the experimental probability as the number of trials increases.

7.PS.1.d

Investigate and describe the difference between the probability of an event found through experiment or simulation versus the theoretical probability of that same event.
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7.PS.2

The student will apply the data cycle (formulate questions; collect or acquire data; organize and represent data; and analyze data and communicate results) with a focus on histograms.

7.PS.2.a

Formulate questions that require the collection or acquisition of data with a focus on histograms.
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7.PS.2.b

Determine the data needed to answer a formulated question and collect the data (or acquire existing data) using various methods (e.g., observations, measurement, surveys, experiments).
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7.PS.2.c

Determine how sample size and randomness will ensure that the data collected is a sample that is representative of a larger population.
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7.PS.2.d

Organize and represent numerical data using histograms with and without the use of technology.
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7.PS.2.e

Investigate and explain how using different intervals could impact the representation of the data in a histogram.
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7.PS.2.f

Compare data represented in histograms with the same data represented in other graphs, including but not limited to line plots (dot plots), circle graphs, and stem-and-leaf plots, and justify which graphical representation best represents the data.
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7.PS.2.g

Analyze data represented in histograms by making observations and drawing conclusions. Determine how histograms reveal patterns in data that cannot be easily seen by looking at the corresponding given data set.
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