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Data/Graphs
Mean, Median, Mode, Range, IQR
Term | Definition |
---|---|
Data | collected information organized in a graph |
Interquartile Range | difference between quartile 3 and quartile 1; measure of spread |
Lower Quartile | median of the first half of numbers in the set of data |
Mean | average; the sum of all the values in the set divided by the amount of numbers given in a set of data |
Measures of Center | measures that identify the central area or the middlemost value of a set of numbers; mean, median, and mode |
Measures of Spread | measures that describe how spread out or scattered the values in a set of data are; range and interquartile range |
Median | middlemost number in a set of data |
Mode | number most often used in a set of data |
Range | difference between the highest value and lowest value in a set of data |
Upper Quartile | the median of the second half of numbers in the set of data |
Box Plot | graph using a number line to show the distribution of data; median, lower and upper quartiles |
Dot Plot | graph using a number line using a dot to show each number in the data set |
Frequency Table | table used to show how often a number occurs in the data set |
Histogram | graph using bars to show the frequency of numbers in the data set |
Horizontal | a line going side to side |
Intervals | numbers between two specific values |
Outliers | data value way higher or way lower than most of the numbers in a data set |
Skewed | when data is off to the right or off to the left |
Stem and Leaf Plot | graph used to display data based on place value |
Symmetrical | shape of a graph when most of the data values are grouped in the middle and tail off equally to both sides |
Uniform | shape of a graph when all values are equal across the graph |
Vertical | a line going up and down |