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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 |