Term
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Definition
| attributes of a certain variable or of certain variables |
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Definition
| information that can be collectes that is not numerical; describes a category |
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Term
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Definition
| a type of information that can be counted or expressed numerically |
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Definition
| a process of inspecting, cleaning, transforming, and modeling data with the goal of highlighting useful information, suggesting conclusions, and supporting decision making. |
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Term
| What are the 2 methods of analyzing central tendency? |
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Definition
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Term
| What are the 2 methods of analyzing measures of spread? |
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Definition
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Term
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Definition
| the difference between the greatest and least values in a set |
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Definition
| an item of data that is much higher or lower than the rest of the data |
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Definition
| a display that shows data in order of place value |
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Term
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Definition
| a data item's last digit on the right |
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Term
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Definition
| represents the digits to the left of the leaf |
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Term
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Definition
| explains what the stems and leaves represent |
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Term
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Definition
| number of times something occurs |
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Definition
| lists each data item with the number of times it occurs |
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Term
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Definition
| representation of a frequency table in which an x is placed above the category of response for each response |
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Term
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Definition
| special type of bar graph used to show the frequency of data (no spaces between bars--height of each bar gives the frequency of the data) |
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Term
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Definition
| a special type of stem-and-leaf plot in which one can display two sets of data side-by-side |
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Term
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Definition
| shows the distribution of data in each 25% of the set of the data |
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Term
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Definition
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Term
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Definition
| also called the "middle 50," the inner two quartiles of a box and whisker plot |
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Term
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Definition
| any group of objects or people |
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Term
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Definition
| small subset of the population |
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Definition
| number of objects in the sample |
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Term
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Definition
| each object in the population has an equal chance of being included in the sample |
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Term
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Definition
| unfair questions that make assumptions that may or may not be true, or that make one answer seem better than the other |
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Term
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Definition
| limited to listed choices (ex. multiple choice questions) |
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Definition
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Definition
| related data from two different sets are graphed as ordered pairs |
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Definition
| points on a scatter plot show a trend, sometimes representable by a straight line |
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Term
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Definition
| as the value of one variable increases, the other increases also |
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Term
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Definition
| as the value of one variable increases, the other decreases |
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Definition
| there is no line that closely fits the points |
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Term
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Definition
| sum of a set of numbers divided by the number of data items |
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Term
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Definition
| middle number in a set of numbers in numerical order |
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Definition
| data item that occurs most often in a set |
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Term
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Definition
| sample or measurement that involves a single quantitative variable (measures and analyzes one type of thing) |
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Term
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Definition
| paired samples or measurements that involve two quantitative variables (measure and analyze two types of things) |
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