Stat 202 Objectives

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By the end of the course, students will be able to ...

Chapter 1

  • Given a data table and the story behind the data, identify the cases and list the variables.
  • Identify a variable as either nominal, ordinal, identifier, binary, or quantitative.

Chapter 2

  • Define and report the distribution of a categorical variable.
  • Be able to convert between frequency, relative frequency, and percent.
  • Tell when two plots of categorical data show the same distribution.

Chapter 3

  • Define distribution of a quantitative variable.
  • Create stem and leaf displays from data.
  • Tell from a histogram whether a distribution is symmetric or left or right skewed.
  • Tell whether a histogram is uniform, unimodal, bimodal, or multimodal and why.
  • Tell whether a histogram has outliers, or gaps.
  • Describe how to compute the median.
  • Describe how to compute the mean.
  • Describe how to compute the lower and upper quartiles and the interquartile range (IQR).
  • Describe how to compute the standard deviation.