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17 Cards in this Set
- Front
- Back
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Census |
The collection of data from every member of the population. |
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Parameter |
Is a numerical measurement describing some characteristic of a population |
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Statistic |
a numerical measurement describing some characteristic of a sample |
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Quantitative data |
Consist of numbers representing counts or measurements |
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Discrete data |
Result when the data values are quantitative and the number of values is finite or countable |
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Continuous data |
Result from infinitely many possible quantitative values. Where the collection of values is not countable. |
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Nominal level of measurement |
Characterized by data that consist of names, labels, or categories only. The data cannot be arranged in an ordering scheme. |
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Ordinal level of measurement |
Data that can be arranged in some order. But differences are meaningless |
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Interval level of measurement |
Data that can be arranged in order but doesn't have a zero string point |
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Ratio level of measurement |
Can be arranged in order, differences can be meaningful, and natural zero starting point. |
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Simple random sampling (SRS) |
-every individual must be associated with a specific number -randomly choose a set of n individuals |
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Stratified sampling |
Sub dividing population into at least two different sub-groups and draw a sample from each group |
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Cluster sampling |
Divide the population into sections the randomly select some of those cluster and then choose all members from those selected clusters. |
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Center |
A representative value that indicates the datas middle(mean median mode |
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Variation |
A measure of the among that the at a slurs vary |
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Distribution |
Bell shape |
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Outliers |
Lie very far away from the vast majority of the sample values |
