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15 Cards in this Set

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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
population
the entire group being surveyed
frequency
the number of times a piece of data occurs
mean
an average of a group of numbers
median
the middle number when data are arranged in order
mode
the number of item that occurs most often in a set of data
range
the difference between the highest and lowest numbers in a ordered series of numbers
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 fact about groups of data
line graph
a graph that shows how data changes over time
circle graph
a graph that shows how parts of the data are related to the whole and to each other
line plot
a visual picture of data so you can quickly see the most common numbers
outlier
a data value that is well-separated from other data values in a set