| A | B |
|---|
| median | the middle number or the average of the two middle numbers in an ordered data set |
| mode | the number(s) or item(s) that occur most often in a data set |
| histogram | a bar graph that displays the frequency of numerical data in equal-sized intervals |
| dependent events | two (or more) events such that the outcome of one event affects the outcome of the other event(s) |
| compound probability | the probability of two or more events occurring |
| measures of variability | statistics that help determine the spread of numbers in a data set |
| complements | two probabilities whose sum is 1. Together they make up all the possible outcomes without repeating any outcomes. |
| event | a desired outcome or group of outcomes |
| frequency | the number of times an item occurs in a data set |
| independent events | two (or more) events such that the outcome of one event does not affect the outcome of the other event(s) |
| pie chart | a circle graph that shows information as sectors of a circle |
| mean absolute deviation | a statistic that shows the average distance from the mean for all numbers in a data set |
| probability | the measure of how likely it is an event will occur |
| outcome | one possible result from an experiment or a probability sample space |
| sample | a group from a population that is used to make conclusions about the entire population |
| representative sample | a group from a population that accurately represents the entire population |
| tree diagram | a display that organizes information to determine possible outcomes |
| experimental probability | the ratio of the number of times an event occurs to the total number of trials |
| theoretical probability | the ratio of favorable outcomes to the number of possible outcomes |
| simulation | an experiment used to model a situation |
| inference | a logical conclusion based on known information |
| interquartile range | the difference between the 3rd quartile and the 1st quartile in a set of data |
| population | the entire group of people or objects one wants to gather information about |
| trial | a single act of performing an experiment |
| random sample | a group from a population created when each member of the population is equally likely to be chosen |
| range | the difference between the maximum and minimum values in a data set |
| biased sample | a group from a population that does not accurately represent the entire population |
| mean | the sum of all values in the data set divided by the number of values |
