click below
click below
Normal Size Small Size show me how
Analyze Data Vocab.
Chapter 5 Analyze Data and Graphs Vocabulary Words
| Question | Answer |
|---|---|
| survey | a set of questions that is used to gather information about a group or to find the preference of a group |
| sample | a part of the group that is chosen to represent the whole group or population |
| random sample | a sample for which every person in the population has an equal chance of being chosen |
| cumulative frequency | a running total of frequencies |
| outlier | a data value that is well-separated from other data values in a set |
| mean | an average of a group of numbers |
| median | the middle number when data are arranged in order |
| mode | the number or item that occurs most often in a set of data |
| stem-and-leaf plot | a graph that organizes data by place value |
| pictograph | a graph that uses symbols or pictures and a key to display countable data |
| bar graph | a graph that displays countable data with vertical or horizontal bars; compares facts about groups of data |
| line graph | a graph that shows how data change over time |
| trend | a pattern over time, such as increasing, decreasing, or staying the same, that is shown by data in part or all of the graph |
| circle graph | a graph that shows how parts of the data are related to the whole and to each other |
| range | the difference of the greatest value and least value in a set of data |