Flashcards - CSET Math: Statistics

Flashcards - CSET Math: Statistics
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stratified random sampling
In statistics, stratified sampling is a method of sampling from a population
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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
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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
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probability distribution
In probability and statistics, a probability distribution is a mathematical description of a random phenomenon in terms of the probabilities of events
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expected value
In probability theory, the expected value of a random variable, intuitively, is the long-run average value of repetitions of the experiment it represents
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range
In arithmetic, the range of a set of data is the difference between the largest and smallest values
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mode
The mode is the value that appears most often in a set of data
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median
The median is the value separating the higher half of a data sample, a population, or a probability distribution, from the lower half
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mean
In mathematics, mean has several different definitions depending on the context
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mean
In mathematics, mean has several different definitions depending on the context
median
The median is the value separating the higher half of a data sample, a population, or a probability distribution, from the lower half
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
expected value
In probability theory, the expected value of a random variable, intuitively, is the long-run average value of repetitions of the experiment it represents
probability distribution
In probability and statistics, a probability distribution is a mathematical description of a random phenomenon in terms of the probabilities of events
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
stratified random sampling
In statistics, stratified sampling is a method of sampling from a population
the law of large numbers
In probability theory, the law of large numbers is a theorem that describes the result of performing the same experiment a large number of times
normal distribution
In probability theory, the normal distribution is a very common continuous probability distribution
regression analysis
In statistical modeling, regression analysis is a statistical process for estimating the relationships among variables
systematic random sampling
Systematic sampling is a statistical method involving the selection of elements from an ordered sampling frame
scatterplot
A scatter plot is a type of plot or mathematical diagram using Cartesian coordinates to display values for typically two variables for a set of data
Simple linear regression
In statistics, simple linear regression is a linear regression model with a single explanatory variable
linear regression
In statistics, linear regression is an approach for modeling the relationship between a scalar dependent variable y and one or more explanatory variables denoted X
sampling distribution
In statistics, a sampling distribution or finite-sample distribution is the probability distribution of a given statistic based on a random sample
standard error
The standard error is the standard deviation of the sampling distribution of a statistic, most commonly of the mean
degrees of freedom
In statistics, the number of degrees of freedom is the number of values in the final calculation of a statistic that are free to vary

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