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Graphing Vocabulary
| Term | Definition |
|---|---|
| bar graph | picture of the data that has been collected represented by bars; good for making comparisons |
| constant | something that does not change in an investigation; used for control |
| data | information (pictures, figures, usually numbers) that you collect using instruments (ruler, cylinder, thermometer, etc.) |
| data table | an organized box where you record the data you collected during an investigation |
| dependent variable | this is what you are measuring or investigating; it changes and may not have even intervals; it is not predictable; listed on the y axis of graphs & listed after the independent variable on data tables |
| headings | a word or words that describes the data in a column or row of a data table or the x or y axis of a graph |
| horizontal axis (x) | The line on the bottom of a graph; this is where the independent variable is placed |
| independent variable | this is how you will measure your investigation; you know this before you begin; this is measured with regularity; measured at even intervals; listed on x axis on graphs & listed first on data tables |
| line graph | picture of the data that has been collected represented by a series of dots, plotted from ordered pairs |
| multiple line graph | A line graph that has more than one line of data plotted |
| numerical increments | The numbers plotted on the x and y axis that show your data; the numbers are plotted in equal increments on both the x and y axis; for instance counting by twos or fives |
| ordered pairs | every set of numbers in a data table or graph is an ordered pair; the x or independent variable is always written first in an ordered pair |
| pie graph | picture of the data that has been collected, represented by a circle, or pie, cut into portions. Each portion, or sector, represents a group of the data collected. Used to show a percent of the whole; good for comparing parts to the whole |
| qualitative data | data that is represented using your senses; tells the quality of something such as color, smell, taste, etc. Is not a number. |
| quantitative data | data this is represented using numbers; collected using instruments; tells a quantity |
| title | a word or words that describes the data you collected in your data table or in your graph; generally represents both the x and y axis data |
| units | how you measure the variables; without units the data is meaningless; |
| "vertical axis (y)" | the line on the side of a graph; this is where the dependent variable is placed |
| scatter plot | a graph in which the values of two variables are plotted along two axes, and the pattern of the resulting points revealing any correlation present. |
| mean | The average of a set of numbers. Found by adding all the numbers together and dividing by how many numbers there are. |
| mode | the number(s) which occurs most often in a set of numbers |
| median | the number in the middle of a set of data, calculate by putting in order from lowest to highest, the number in the center is the median |
| range | The difference between the highest and lowest number in a data set |
Created by:
jordan529
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