WGU TBA4 Statistics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | result when the number of possible values is either a finite number or a countable number
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| show | result from infinitely many possible values that correspond to some continuous scale that covers a range of values without gaps, interruptions or jumps
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| parameter | show 🗑
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| show | a numerical measurement describing some characteristic of a sample
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| nominal | show 🗑
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| show | categories are ordered, but differences cannot be found or are meaningless
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| show | differences are meaningful, but there is no natural zero starting point and ratios are meaningless
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| ratio | show 🗑
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| voluntary response sample | show 🗑
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| show | observe and measure specific characteristics, but don't attempt to modify the subjects being studied
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| experiment | show 🗑
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| cross-sectional study | show 🗑
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| retrospective study | show 🗑
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| prospective study | show 🗑
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| random sample | show 🗑
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| show | n subjects is selected in such a way that every possible sample of the same size n has the same chance of being chosen
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| show | selecting members from a population in such a way that each member has a known chance of being selected
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| systematic sampling | show 🗑
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| show | simply use the results that are very easy to get
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| show | subdivide the population into at least two different subgroups so that subjects within the same subgroup share the same characteristics, then we draw a sample from each subgroup
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| show | first divide the population area into sections, then randomly select some of those clusters, and then chose all the members from those selected clusters
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| simulation | show 🗑
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| show | a probability obtained with the additional information that some other event has already occurred
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| event | show 🗑
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| simple event | show 🗑
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| sample space | show 🗑
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| complement | show 🗑
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| show | a variable that has a single numerical value, determined by chance, for each outcome of a procedure
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| show | a description that gives the probability for each value of the random variable, often expressed in the format of a graph, table, or formula
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| discrete random variable | show 🗑
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| continuous random variable | show 🗑
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