# Flashcards - NES Math: Summarizing Data

Flashcards - NES Math: Summarizing Data
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mean

The mean, or average, is the sum of all numbers in a data set, divided by the number of addends.

median
The median is the value separating the higher half of a data sample, a population, or a probability distribution, from the lower half
outlier
In statistics, an outlier is an observation point that is distant from other observations
population
A population is a summation of all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding
sample
In statistics and quantitative research methodology, a data sample is a set of data collected and/or selected from a statistical population by a defined procedure
mode
The mode is the value that appears most often in a set of data
range
In arithmetic, the range of a set of data is the difference between the largest and smallest values
histogram
A histogram is a graphical representation of the distribution of numerical data
standard deviation
In statistics, the standard deviation is a measure that is used to quantify the amount of variation or dispersion of a set of data values
dispersion

Also known as variability, dispersion is spread out a given set of data is.

Bimodal distribution
In statistics, a bimodal distribution is a continuous probability distribution with two different modes
quartile
In descriptive statistics, the quartiles of a ranked set of data values are the three points that divide the data set into four equal groups, each group comprising a quarter of the data
percentile
A percentile is a measure used in statistics indicating the value below which a given percentage of observations in a group of observations fall

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