# Graphs & Charts Vocabulary

 Graph in which the lengths of bars are used to represent and compare data. bar graph A sample that's not representative of the population from which it is selected. biased sample Displays data as sections of a circle. The entire circle represents all the data & is labeled using fractions, decimals or % of the sum of the data. circle graph Information, facts or numbers that describe something. data The number of times an item, number, or event occurs in a set of data. frequency A table used to group data values into intervals. frequency table A graph that displays data from a frequency table; has one bar for each interval of the table that contains data values. The length of the bar indicates the frequency for the interval. histogram A set containing all points (or all real numbers) between two given endpoints. intervals A type of graph in which points representing data pairs are connected by line segments. line graph A number line diagram that uses X marks to show the frequencies of items or categories being tallied. line plot The sum of the values in a data set divided by the number of values. mean The middle value in a data set when the values are written in numerical order. If the data set has an even number of values, the median is the mean of the 2 middle values. median The number that occurs most frequently in a set of numbers. mode A visual display (graph) of data shown by using symbols. Also may be referred to as a picture graph. pictograph In statistics, the entire group of people or objects about which you want information. population A sample selected in such a way that each member of the population has an equally likely chance to be part of the sample. random sample The difference between the largest and smallest values in a numerical data set. range (of a data set) A part of a population. sample AuthorAnonymous ID53072 Card SetGraphs & Charts Vocabulary Descriptionmiddle school math data/graphing vocabulary Updated2010-12-06T16:57:03Z Show Answers