Aligned Standard

M.EE.7.SP.3: Compare two sets of data within a single data display such as a picture graph, line plot, or bar graph.

Grade Level Standard

This is aligned with the following California State Standards:

  • 7.SP.3 - Informally assess the degree of visual overlap of two numerical data distributions with similar variabilities, measuring the difference between the centers by expressing it as a multiple of a measure of variability. For example, the mean height of players on the basketball team is 10 cm greater than the mean height of players on the soccer team, about twice the variability (mean absolute deviation) on either team; on a dot plot, the separation between the two distributions of heights is noticeable.

Linkage Level Descriptions

Initial Precursor

Arrange objects in a specific order or by following a specific rule (e.g., arranging three pencils by increasing length). Group like items by attributes and distinguish between like items based on simple characteristics, such as shape, size, texture, and numerical pattern.

Distal Precursor

Recognize the structure of bar graphs, picture graphs, and line plots such as the title and labels for the x- and y-axes. Understand that bars are used to display data on bar graphs, where the height of the bar represents the data values. Understand that pictures or symbols are used to display data on picture graphs, where the number of pictures or symbols represents the data values. Understand that on a line plot, x is used to represent the data values.

Proximal Precursor

Recognize symmetric distribution, outliers, and peaks in a data distribution shown graphically. Recognize data values substantially larger or smaller than the other values as outliers. Recognize peaks as data values that most frequently occur. Recognize symmetric distribution as distributions where the left- and right-hand sides of the distributions are roughly equal. Recognize whether a set of scores is spread-out or grouped together (variability).

Target

Compare variability of two data sets (i.e., spread out or grouped together) by overlapping the shapes of two data distributions. Compare differences in shapes of two or more sets of data (i.e., peaks, outliers, or symmetric distribution).

Successor

Draw inferences by comparing the shape and spread of two data sets (e.g., compare the peaks of two sets of data, height of soccer players and height of basketball players, to communicate that basketball players are, in general, taller than soccer players).