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Contemporary Mathematics

Key Terms

Contemporary MathematicsKey Terms

Key Terms

8.1 Gathering and Organizing Data

  • sample
  • units
  • data
  • population
  • simple random sample
  • systematic random sample
  • stratified sample
  • cluster sample
  • quantitative data
  • categorical data
  • categorical frequency Distribution
  • binned frequency distribution

8.2 Visualizing Data

  • proportion
  • bar chart
  • pie chart
  • stem-and-leaf plot
  • distribution (of quantitative data)
  • histogram
  • bar chart for labeled data

8.3 Mean, Median and Mode

  • mode
  • bimodal
  • median
  • mean

8.4 Range and Standard Deviation

  • range
  • standard deviation

8.5 Percentiles

  • percentile
  • quartile
  • quintile
  • quantile

8.6 The Normal Distribution

  • normal distribution
  • 68-95-99.7 Rule
  • standardized score (zz-score)

8.8 Scatter Plots, Correlation, and Regression Lines

  • response variable (dependent variable)
  • explanatory variable (independent variable)
  • scatter plot
  • positive linear relationship
  • negative linear relationship
  • correlation coefficient
  • regression line (least-squares line, line of best fit)
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