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Scatterplots & Intro to Correlation definitions

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  • Scatterplot
    A graph displaying paired numerical data as points on an x-y coordinate system, revealing relationships between two variables.
  • Correlation
    A statistical relationship where data points form a trend or pattern, indicating how two variables move together.
  • Positive Correlation
    A relationship where increases in one variable are associated with increases in another, shown by upward-sloping data.
  • Negative Correlation
    A relationship where increases in one variable are associated with decreases in another, shown by downward-sloping data.
  • Linear Correlation
    A trend where data points align closely to a straight line, indicating a consistent relationship between variables.
  • Nonlinear Relationship
    A pattern where data points form curves or shapes other than a straight line, indicating a complex association.
  • No Correlation
    A situation where data points show no discernible pattern or trend, indicating no relationship between variables.
  • Independent Variable
    The variable plotted on the x-axis, whose values are chosen or controlled in an experiment or data set.
  • Dependent Variable
    The variable plotted on the y-axis, whose values depend on changes in the independent variable.
  • Causation
    A concept where one variable directly influences another, distinct from mere statistical association.
  • Stat Plot Menu
    A calculator feature used to select and enable graph types, such as scatterplots, for visualizing data.
  • Window Settings
    Adjustments to graph axes ranges and scales, ensuring data points are properly displayed on a calculator.
  • Trend
    A general direction or pattern observed in data points, indicating how variables relate over time or conditions.
  • X Axis
    The horizontal axis in a graph, typically representing the independent variable in scatterplots.
  • Y Axis
    The vertical axis in a graph, typically representing the dependent variable in scatterplots.