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Graphing
Graphing Vocabulary
| Term | Definition |
|---|---|
| Box Plot | A graph that shows how data are distributed by using the median, quartiles, least value and greatest value. |
| Dot Plot | A visual display in which each piece of data is represented by a dot above the number line |
| Average | The sum of the items in a set of data divided by the number of items in the set. |
| Mean | The sum of the items in a set of data divided by the number of items in the set. |
| Categorical data | Data that consists of non numeric information. |
| Cluster | A group of data points close together on a dot plot |
| Measure of Center | A single number used to describe a set of numeric data. (Mean and Median |
| Median | The middle number or the average of the 2 middle numbers in an ordered set of data. |
| Mode | The number or numbers that occur most frequently in a set of data. |
| Lower Quartile | The median of the lower half of the data |
| Upper Quartile | The median of the upper half of the data. |
| Measure of Spread | A single number that describes the spread of the data. Range and Mode. |
| Interquartile Range (IQR) | Difference of the upper quartile and lower quartile. |
| Range | Difference of the greatest value and the least value in a set of data. |
| Outlier | Data values that are either much greater or much less than the other data values. |
| Stem and Leaf Pot | A display of data in which digits with larger place values are named as stems and digits with smaller place values are named as leaves. |
| Categorical Data | Data from observations that can be sorted into groups or categories. |
| Relative Frequency | The ratio of the frequency to the sum of the frequencies for all categories. Usually written as a fraction or percent. |
| Histogram | A graph that uses bars to show the frequency of data within equal intervals. |
| Skewed Distribution | Describes the shape of data that is pulled in one direction away from the center in a tail on the left or right. Has an outlier |
| Statistical Question | A question that anticipates variability in the answer. |
| Variability | Measures of much the data points will differ or vary from each other. |
| Peak | The maximum frequency of a data set. |
| Uniform Distribution | Describes the shape when the values of the data set are equally spread across the range. |
| Symmetrical Distribution | Describes a set of data in which the shape of the left side is roughly the same shape as the right side. |
Created by:
melody.pence
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