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Statistics & Probability


Statistical Questions (SP 6.1)

SP 6.1

Recognize a statistical question as one that anticipates variability in the data related to the question and accounts for it in the answers. For example, “How old am I?” is not a statistical question, but “How old are the students in my school?” is a statistical question because one anticipates variability in students’ ages. 

Data Distribution and Shape  (SP 6.2)

SP 6.2

Understand that a set of data collected to answer a statistical question has a distribution which can be described by its center, spread, and overall shape. 

Measure of Center and Variation  (SP 6.3)

SP 6.3

Recognize that a measure of center for a numerical data set summarizes all of its values with a single number, while a measure of variation describes how its values vary with a single number. 

Visual Data Sets - Dot Plots, Histograms, & Box Plots  (SP 6.4)

SP 6.4

Display numerical data in plots on a number line, including dot plots, histograms, and box plots.

Numerical Data Sets (SP 6.5)

SP 6.5

Summarize numerical data sets in relation to their context, such as by:
  • a)  Reporting the number of observations.
  • b)  Describing the nature of the attribute under investigation, including how it was measured and its units of measurement.
  • c)  Giving quantitative measures of center (median and/or mean) and variability (interquartile range and/or mean absolute deviation), as well as describing any overall pattern and any striking deviations from the overall pattern with reference to the context in which the data were gathered.
  • d)  Relating the choice of measures of center and variability to the shape of the data distribution and the context in which the data were gathered.