Scatter plots Vocabulary

___ data for two variables.

• trivariate

• bivariate

• positive

• negative

Define outlier

• a value much greater or much lesser than the others in the data set

• a system of equation that have the same slope will never intercept, creating

  parallel lines

• measures of values or counts and are expressed as numbers.

  Qualitative data are measures of 'types' and may be represented by a name, symbol, or

  a number code.

• Association- x-values and y-values are going in opposite directions. Therefore, one is

  decreasing and the other is increasing

x-values and y-values either increase together or decrease together

• linear association

• Positive association

• negative association

• no association

x-values and y-values are going in opposite directions. Therefore, one is decreasing and the other is increasing

• Negative association

• positive association

• no association

• linear association

the x-values and the y-values are both doing their own thing. Therefore, both are going in all different directions.

• linear association

• negative association

• positive association

• No association

a relationship between two variables in which the data do increase and decrease together at the same rate

• Linear association

• positive association

• No association

• negative association

a relationship between two variables in which the data do not increase or decrease together at the same rate

• linear association

• Positive association

• negative association

• non linear association

the line on a scatter plot that help show the correlation between data sets more clearly

• y-intercept

• Trend line

• slope

• Scatter plot

a graph with points plotted to show a possible relationship between two sets of data

• Trend line

• scatter plot

• slope

• y intercept

a measure of the steepness of a line on a graph; the rise divided by the run

• Trend line

• Scatter plot

• Slope

• y intercept