Term

Definition
The art and science of collecting, interpreting, and analyzing data. 


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Definition
A group of objects with common identifying characteristics; membership must be clearly defined. 


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Definition
A property of a sample (example: Xbar) 


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Definition
Characteristic or property of a population. 


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Random Sampling Variation 

Definition
The uncertainty surrounding estimates of parameters (i.e. standard error of the mean). 


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Definition
As sample size increases, the accuracy of the statistic increases. 


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Definition
The shape of the sampling distribution becomes normally distributed as sample size increases regardless of the shape of the population distribution. 


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Definition
'Peakedness' of the curve or fourth moment around the mean of a population distribution. 


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Definition
Classified by quality, not quantity (example: hair color, zodiac sign) 


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Definition
Constant interval and a true zero point (example: weights, volumes). 


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Definition
Constant interval; zero point is arbitrary (example: C or F temperature). 


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Definition
Not equal units apart(example: places in a race). 


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Definition
Software that translate a program from high level language to machine language and back again. 


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Definition
Each and every random set of data from a population has an equal and independent chance of being chosen. 


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Definition
Data stored as strength of current. 


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Definition
data stored as 1 or 0 (binary or machine language). 


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Definition


Term

Definition
Closeness of repeated measurements of the same object. 


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Definition
Pattern to the errors (always over or under estimate). 


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Definition
Variables that are not studied in an experiment yet can affect the response variables. 


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Definition
A frequency distribution of some random variable (i.e. X) for the entire population. 


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Definition
A frequency distribution of some random variable (i.e. X) for a sample. 


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Definition
A theoretical frequency distribution of some statistic (i.e. Xbar) for many samples of a given sample size from a population. 


Term

Definition
A population is broken into strata based on some variable and the sampling intensities are varied by the strata. 


Term
Standard Error of the Mean 

Definition
The uncertainty of an estimation of a statistic of a given sample size. 


Term

Definition
Value or datum that occurs the most in the data set. 


Term

Definition
Datum or value that divides an order data set exactly in half. 


Term

Definition
is the center of gravity of the frequency distribution. 

