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Statisstics

TermDefinition
median A measure of center. It is the middle data value
mode A measure of center. It is the value that occurs the most often.
range A measure of variability. The distance of the greatest value and the least value.
inner quartile range A measure of variability. It is the difference between the third quartile and the first quartile
outlier Is a data point that varies significantly from the rest of the data. It will be a value that is either significantly larger or smaller than other observations.
skewed-left The distribution has a long tail extending to the left.
skewed-right The distribution has a long tail extending to the right.
symmetrical The shape perfectly symmetric, because it can be divided into two halves that mirror images of each other. They do not have to have a perfect symmetry.
bi-modal The distribution has two models (or 'humps').
uniform The distribution of data is all the same (or flat).
mean Is a measure of center. It is the average of the data.
mean absolute deviation Is the average distance that the data points in a set of data are from the mean
sample size It describes the number of data points collected in the sample.
quartile 1 The median of the first half
quartile 3 The median of the second half
impossible Events that will never happen.
certain Events that will definitely happen.
equally probable/equally likely It is exactly halfway between impossible (0) and certain (1)
unlikely Events have probabilities greater than o but less than 1/2
likely Events have probabilities greater than 1/2 but less than 1
Created by: user-1970008
 

 



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