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Skills available for Arizona eighth-grade math standards

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8.NS The Number System

8.EE Expressions and Equations

8.F Functions

8.G Geometry

8.SP Statistics and Probability

  • 8.SP.A Investigate patterns of association in bivariate data.

    • 8.SP.A.1 Construct and interpret scatter plots for bivariate measurement data to investigate and describe patterns such as clustering, outliers, positive or negative association, linear association, and nonlinear association.

    • 8.SP.A.2 Know that straight lines are widely used to model relationships between two quantitative variables. For scatter plots that suggest a linear association, informally fit a straight line, and informally assess the model fit by judging the closeness of the data points to the line.

    • 8.SP.A.3 Use the equation of a linear model to solve problems in the context of bivariate measurement data, interpreting the slope and intercept.

    • 8.SP.A.4 Understand that patterns of association can also be seen in bivariate categorical data by displaying frequencies and relative frequencies in a two-way table. Construct and interpret a two-way table summarizing data on two categorical variables collected from the same subjects. Use relative frequencies calculated for rows or columns to describe possible association between the two variables.

  • 8.SP.B Investigate chance processes and develop, use, and evaluate probability models.

    • 8.SP.B.5 Find probabilities of compound events using organized lists, tables, tree diagrams, and simulation.

      • 8.SP.B.5.a Understand that the probability of a compound event is the fraction of outcomes in the sample space for which the compound event occurs.

      • 8.SP.B.5.b Represent sample spaces for compound events using organized lists, tables, tree diagrams and other methods. Identify the outcomes in the sample space which compose the event.

      • 8.SP.B.5.c Design and use a simulation to generate frequencies for compound events.