Mathematics (2019) Grade(s): 7

MA19.7.11

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.

Unpacked Content

Knowledge

Students know:
  • populations can be compared using measures of center and measures of variability

Skills

Students are able to:
  • informally assess the degree of visual overlap of two numerical data distributions with similar variabilities.
  • Measure the difference between the centers by expressing it as a multiple of a measure of variability.

Understanding

Students understand that:
  • outliers skew data, which in turn affects the display.
  • Measures of center give information about the location of mean, median, and mode, whereas measures of variability give information about how spread out the data is.

Vocabulary

  • Visual overlap
  • Measure of variability
  • Data distribution
  • range
  • interquartile range
  • mean absolute deviation
ALSDE LOGO