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Introduction to Statistics and Reasoning
Measures of Position; Probability; Discrete Random Variables and Their Probability Distributions
12
Mathematics
Undergraduate 2
06/08/2011

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Cards

Term
quartiles
Definition
three summary measures hat divide a ranked data set into four equal parts
Term
box-and-whisker plot
Definition
a plot that shows the center, spread, and skewness of a data set
Term
percentiles
Definition
ninety-nine values that divide a ranked data set into 100 equal parts
Term
compound event
Definition
an event that contains more than one outcome of an experiment
Term
event
Definition
a collection of one or more outcomes of an experiment
Term
impossible event
Definition
an event that cannot occur
Term
law of large numbers
Definition
if an experiment is repeated again and again, the probability of an event obtained from the relative frequency approaches the actual or theoretical probability
Term
sample space
Definition
the collection of all sample points or outcomes of an experiment
Term
simple event
Definition
an event that contains one and only one outcome of an experiment
Term
discrete random variable
Definition
a random variable whose values are countable
Term
probability distribution of a discrete random variable
Definition
a list of all the possible values that a discrete random variable can assume and their corresponding probabilities
Term
random variable
Definition
a variable, denoted by x, whose value is determined by the outcome of a random experiment
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