Frequency The number of items that an event or item occurs Primary Data Information that is collected directly Secondary Data Information that is collected by someone else Biased Results When the result of a survey of one group are not likely to apply to another group selected from the same population Sample A part of the population that is used to make predictions about the whole population Population The total number of individual or items Census The counting of an entire population Database An organized set of information, often stored on a computer Record All the data about one item in the database Field A category used as part of a database Entry A single piece of data in a database Sort Order information from greatest (or first) to least (or last); a database can be sorted by fields Spreadsheet An orderly arrangement of numerical data using rows and columns Cell The intersection of a column and a row, where individual data are stored Formula Calculations made within a cell using data from other cells; formulas may vary depending on the spreadsheet program Frequency Table A count of each item, organized by categories or intervals Stem-and-Leaf Plot An organization of numerical data in categories based on place values; the digits representing greater values are the stems, and the other digits are the leaves Intervals The space between two values Mean The sum of a set of numbers divided by the number of numbers in the set Median The middle value in a set of ordered data; when there is an even number of numbers, the median is the mean of the two middle numbers Mode The number that occurs most often in a set of data; there can be more than one mode or there might be no mode Data Management
Math - Chapter 1 
BTT - Ethics and Legal 