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Prob & Stats Vocab_8
Vocabulary from Probability and Statistics
| Term | Definition |
|---|---|
| Scatter Plot | a graph that shows the relationship between two variables in a data set |
| Bivariate Data | involves two variables |
| Outlier | a value that is much greater or lesser than most of the other values in the data set |
| Cluster | a set of closely grouped data |
| Linear association | when the data points appear to cluster around a line |
| Nonlinear association | when the data points do not cluster around a line |
| Negative association | if both data sets decrease together; when the line around a scatter plot has a negative slope |
| Positive association | if both data sets increase together; when the line through a scatter plot has a positive slope |
| Line of best fit | a straight line that shows the linear relationship between points of a scatter plot |
| y-intercept | the value of y when x equals zero |
| slope | the ratio of the change in y-coordinates as compared to the change in x-coordinates |
| bivariate data | involves two variables |
| two-way frequency table | a two-way table that shows the frequency, or count, of each category |
| relative frequency | the ratio of the number of times an event occurs to the total number of events |