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Statistics

Unit 1 Vocabulary

TermDefinition
Frequency Table The organization of data in table form with classes and frequency
Histogram a way of displaying numeric data using horizontal or vertical bars so that the height or length of the bars indicates frequency
Inter-Quartile Range (IQR) The difference between the upper quartile and the lower quartile in middle 50% of a set of data
Maximum Value The largest value in a set of data
Mean Absolute Deviation The average distance of each data value from the mean
Mean The "average" or "fair share" value for the data
Measures of Center The mean and the median are both ways to measure the center for a set of data
Measure of Spread The range and the Mean Absolute Deviation are both common ways to measure the spread for a set of data
Median The value for which half the numbers are larger and half are smaller
Minimum Value The smallest value in a set of data
Mode The number or numbers that occur the most often in a list
Numerical Data A set of data that consists of numbers only
Outlier An outlier is an observation that is numerically distant from the rest of the data
Range A measure of spread. The difference between the maximum value and the minimum value in a set of data
Skewed Data When a set of data is not symmetrical, meaning it contains one or more outliers and tends to have a long tail on the left or right side
Statistical Questions A question for which you don't expect to get a single answer. Instead, you expect to get a variety of different answers, and you are interested in the distribution and tendency of those answers
Variability Describes how spread out or closely clustered a set of data is it includes range and mean absolute deviation
Created by: Kehir
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