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Sean's key terms 2
| Question | Answer |
|---|---|
| line graph | A graph used to show how a set of data changes over a period of time |
| average | the sum of two or more quantities divided by the number of quantities; the mean |
| bar graph | A graph using bars to compare quantities. The height or length of each bar represents a designated number |
| frequency | The number of items an item occurs |
| graph | A visual way to display data |
| horizontal axis | The axis on which the categories or values are shown in a bar and line graph |
| integers | The whole numbers and their opposites...,-3, -2, -1, 0,1,2,3 |
| key | A sample data point used to explain the stems and leaves in a stem and leaf plot. |
| line plot | a diagram that shows the frequency of data on a number line |
| mean | The sum of the numbers in a set of data divided by the number of pieces |
| measures of central tendency | numbers that are used to describe the center of data. These measures include the mean, median, and mode. |
| median | The middle number in a set of data when the data are arranged in numerical order. If the data has an even number, the median is the mean of the two middle numbers |
| mode | The numbers or items that appear most often in a set of data |
| negative numbers | A number that is less than zero |
| opposites | Numbers that are the same distance from zero in opposite directions |
| outlier | A value that is much higher or much lower than the other values in a set of data. |
| positive numbers | A number that is greater than zero |
| range | The difference between the greatest number and the least number in a set of data. |
| stem-and-leaf plot | A system used to condense a set of data where the greatest place value of the data forms the stem and the next greatest place value forms the leaves. |
| vertical axis | The axis on which the scale and interval are shown in a bar or line graph. |