Alabama

Alabama flag
Skills available for Alabama eighth-grade math standards

Standards are in black and IXL math skills are in dark green. Hold your mouse over the name of a skill to view a sample question. Click on the name of a skill to practice that skill.

Show alignments for:

Actions

NO Number Systems and Operations

AF Algebra and Functions

DSP Data Analysis, Statistics, and Probability

GM Geometry and Measurement

NO Number Systems and Operations

AF Algebra and Functions

DSP Data Analysis, Statistics, and Probability

  • Investigate patterns of association in bivariate data.

  • Data arise from a context and come in two types: quantitative (continuous or discrete) and categorical. Technology can be used to "clean" and organize data, including very large data sets, into a useful and manageable structure – a first step in any analysis of data.

    • 38 Distinguish between quantitative and categorical data and between the techniques that may be used for analyzing data of these two types.

  • The association between two categorical variables is typically represented by using two-way tables and segmented bar graphs.

  • Data analysis techniques can be used to develop models of contextual situations and to generate and evaluate possible solutions to real problems involving those contexts.

    • 40 Data analysis techniques can be used to develop models of contextual situations and to generate and evaluate possible solutions to real problems involving those contexts.

      • 40.a Aggregate data from several groups to find an overall association between two categorical variables.

      • 40.b Recognize and explore situations where the association between two categorical variables is reversed when a third variable is considered (Simpson's Paradox)

  • Mathematical and statistical reasoning about data can be used to evaluate conclusions and assess risks.

    • 41 Use mathematical and statistical reasoning with bivariate categorical data in order to draw conclusions and assess risk.

  • Making and defending informed, data-based decisions is a characteristic of a quantitatively literate person.

    • 42 Design and carry out an investigation to determine whether there appears to be an association between two categorical variables, and write a persuasive argument based on the results of the investigation.

  • Two events are independent if the occurrence of one event does not affect the probability of the other event. Determining whether two events are independent can be used for finding and understanding probabilities.

  • Conditional probabilities – that is, those probabilities that are "conditioned" by some known information – can be computed from data organized in contingency tables. Conditions or assumptions may affect the computation of a probability.

GM Geometry and Measurement