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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 |