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# Math Vocab Ch.12

### Vocab For Chapter 12 Math Test

Bias When a survey question contains assumptions that may or may not be true
Bivariate A set of data that uses two variables
Box-and-whisker plot A graph that summarizes a set of data by displaying it along a number line
Combination A selection of objects without regard to order
Complement of an Event The probability of a random event not occurring
Matrix A rectangular array of numbers organized into rows or columns
Element Each number in a matrix
Frequency The number of fata values in an interval
Frequency Table A table grouping the data values into intervals
Cumulative frequency table A table showing the number of fata values that lie in or below a given interval
Histogram A graph that can display data from a frequency table
Measures of Central Tendency Summarize a set of data
Outlier Data value that is much greater or less that other values in the set
Range A measure of dispersion found by subtracting the smallest value from the largest
Percentile Rank The percentage of data values that are less than or equal to that value
Quantitive Measure characteristics numerically
Qualitative Measures characteristics categorically
Univariate A set of data that uses only one variable
Population The group you wish to gather information about
Sample A smaller group that you collect information about
Random Sampler Randomly selects them
Systematic Sampler Picks a number n and samples every nth person
Stratified Sample Divides people into similar groups and then randomly selects some from each group
Fundamental Rule of Counting M ways for one event, N ways for another: M times N ways for both events to occur
Factorial The product of the numbers from 1 to N
Permutation An arrangement of objects in which order matters
Combination A selection of objects in which order does not matter
Probability The likelihood that an event will happen
Theoretical Probability Logical thinking
Experimental Probability Do something
Odds A ratio that compares the number of favorable outcomes and unfavorable outcomes
Compound Event Combines two or more events using the words and or or.
Created by: zenzenlauren