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Definition
| The art and science of collecting, interpreting, and analyzing data. |
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| A group of objects with common identifying characteristics; membership must be clearly defined. |
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| A property of a sample (example: X-bar) |
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| Characteristic or property of a population. |
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| Random Sampling Variation |
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Definition
| The uncertainty surrounding estimates of parameters (i.e. standard error of the mean). |
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| As sample size increases, the accuracy of the statistic increases. |
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| 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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| 'Peakedness' of the curve or fourth moment around the mean of a population distribution. |
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| Classified by quality, not quantity (example: hair color, zodiac sign) |
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| Constant interval and a true zero point (example: weights, volumes). |
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| Constant interval; zero point is arbitrary (example: C or F temperature). |
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| Not equal units apart(example: places in a race). |
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| Software that translate a program from high level language to machine language and back again. |
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| 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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| 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. X-bar) for many samples of a given sample size from a population. |
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Definition
| A population is broken into strata based on some variable and the sampling intensities are varied by the strata. |
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| Standard Error of the Mean |
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Definition
| The uncertainty of an estimation of a statistic of a given sample size. |
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Definition
| Value or datum that occurs the most in the data set. |
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Definition
| Datum or value that divides an order data set exactly in half. |
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Definition
| is the center of gravity of the frequency distribution. |
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