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25 Cards in this Set

  • Front
  • Back
balance point
in statistics, this is the mean - the point on a number line at which the values to the left and right are equal
bimodal
in statistics, a data set with two modes
mean
a measure of center calculated by adding all of a set of a values and dividing by the number of values
measures of center
numbers that give some indication of the distribution of data. three common measures of center are mean, median, and mode.
median
in statistics, the middle number of an ordered set, e.g. 3 in the set 0, 1, 1, 3, 4, 5, 6
mode
in statistics, the most common number of an set, e.g. 1 in the set 0, 1, 1, 3, 4, 5, 6
bar graph
a graph where the length of a bar represents a certain amount.
central angle
a central angle is an angle whose vertex is the center of a circle, and whose sides pass through a pair of points on the circle,
circle graph
a graph of statistical data where a circle is subdivided into regions that represent the percent of the total.
compass
an instrument for drawing circles
conjecture
guess: a message expressing an opinion based on incomplete evidence
data
facts and statistics collected together for reference or analysis
frequency distribution
The organization of data to show how often certain values or ranges of values occur.
histogram
a bar chart representing a frequency distribution
inference
conclusion reached on the basis of evidence and reasoning
intervals
in histograms, these are roughly equal ranges of data
line graph
a graph in which points, each corresponding to a particular value, are connected by a line.
line plot
A graph showing the frequency of data on a number line.
prediction
a statement about the way things will happen in the future
protractor
an instrument for measuring angles
stem-and-leaf plot
a plot that shows a set distribution with each value separated into a base number and the remaining portion
survey
an investigation of the opinions or experience of a group of people, based on a series of questions
tally
a count, often recorded in simple marks in groups of five
trends
patterns or sequences in a data set
vertex
a meeting point of two lines that form an angle