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MATH VOCAB
Math Vocab
33
Mathematics
7th Grade
01/30/2014

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Term
Mean
Definition
The average number
Term
Median
Definition
The 'Middle' number of the set.
Term

Mode

Definition
The number that occurs most frequentley
Term
Range
Definition
The difference between the highest and lowest.
Term
M.A.D
Definition

a component of a data set is


the total difference between that


component and a given point

Term
Cluster
Definition
A group of numbers gathered around a certain value
Term
Data
Definition
A collection of facts such as measurements or values
Term
Sample(of data)
Definition
A selection taken from a larger group.
Term
Gaps
Definition
 A huge interval between a set of numbers.
Term
Variability
Definition
How spread out or scattered a set of data is.
Term
Distributation
Definition
To seperate into catagories or to classify.
Term
Categorical Data
Definition
A statistical data type consisting of categoricalial varibles.
Term
Numerical Data
Definition
Levels of measurement or scales of mesure.
Term
Interquartile Range
Definition
The difference between the first and third quartiles in a set of data
Term
Random Sampling
Definition
Selection of a random sample.
Term
Bias
Definition
A line going diagonly across something
Term
Interval
Definition
A space between two objects, points, or units.
Term
Lower Extreme
Definition
Smallest or least out of a data set
Term
Lower Quartile
Definition
The number that divdes the lower half of the data into equal sets
Term
Measures of Central Tendency
Definition
Mean, Meadian, and Mode
Term
Outlier
Definition
A number detached from the main body or the system
Term
Scale
Definition
The ratio or length of a drawing
Term
Statistics
Definition
The practice or science of collecting data in large quanitys
Term
Upper Extreme
Definition
Largest or biggest number out of a data set.
Term
Upper Quartile
Definition
The number that diivides the upper ha;f of the data into equal sets.
Term
Bar Graph
Definition
A digram in which the numerical values of variables are represented by the height or length
Term
Box Plot
Definition
A covinent way of graphicly dipicting data thru their quartiles
Term
Frequency Table
Definition
Arrangement of the values that one or more of the varibles take in a sample.
Term
Histogram
Definition
A diagram consisting of rectangles whose area is proportinal to the frequency of a varible.
Term
Line Graph
Definition
A graph that uses points connected to lines to show how something changes.
Term
Dot Plot
Definition
A set of data where each set of data is showed by a dot.
Term
Scatter Plot
Definition
A graph of a plot of points that show the relationships of 2 sets of data.
Term
Stem-and-Leaf Plot
Definition

A stem-and-leaf display is a device for


presenting quantitative data in a graphical


format, similar to a histogram

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