Term | Definition |
Slope | m |
Qualitative Data | attributes, labels, or non non-numeric entries |
y | dependent variable |
Statistic | numerical description of a sample |
Regression Line | the line of best fit |
Experiment | a treatment is applied and responses are observed |
x | independent variable |
Survey | an investigation carried out by asking questions |
Population | the collection of all outcomes |
Y-intercept | b |
Frequency | number of data entries in the class |
The y-value of a data point corresponding to x! | y! |
Statistics | the science of collecting, organizing,analyzing,and interpreting data |
Scatterplot | ordered pairs are graphed as points on a graph |
The mean of the y values | -
y |
Parameter | numerical description of a population |
Sample | subset of population |
Pareto Chart | histogram with decreasing bars |
The point a regression line passes through | (x,y) |
Interquartile range | difference between the first and third quartile |
Range | the distance between the max and min |
The y-value for a point on the regression line corresponding to x! | ^
y |
Mean | sum of data entries divided by number of entries |
Mode | piece of data that occurs the most |
Quantitative | numerical measurements or counts |
Residual | the difference between the observed y-value and the predicted y-value |
Simple Event | single outcomes |
Sample Space | set of all possible outcomes |
Subjective Probability | what you think will happen |
Variance | σ2 |
Classical Probability | when each outcomes is equally likely to occur |
Combination | selection of objects without order |
Permutation | "ordered" arrangements of objects |
Empirical Probability | probability determined by experiment |
Outcome | the result of a single trial |
Mutually Exclusive | two events that cannot occur at the same time |
Standard Deviation | σ |
Complement of an Event | all outcomes that are not desired |
Event | one or more outcomes |
Dependent Events | two events that rely on eachother |
Outliers | are extreme values not in the norm |