Math Vocab Chapter 2 Flashcards
(21 cards)
Average
The sum of two or more quantities divided by the number of quantities; the mean
Bar graph
A graph using bars to compare quantities. The height or length of each bar represents a designed number.
Frequency
The number of times an item occurs.
Graph
To place a point named by an ordered pair on the grid.
Horizontal axis
the axis on which the categories or values are shown in a bar and line graph
Integers
The whole numbers, their opposites, and zero… -3, -2, -1, 0, 1, 2, 3…
Key
A sample data point used to explain the stem and leaves in a stem-and-leaf plot.
Leaves
The units digit written to the right of the vertical line in a stem-and-leaf plot.
Line graph
A graph used to show how a set of data changes over a period of time.
Line plot
A diagram that shows the frequency of data on a number line.
Mean
The sum of the numbers in a set of data divided by the number of pieces in a data
Median
The middle number in a set of data when the data are arranged in numerical order. If the data has an even number, the median is the mean of the two middle numbers.
Mode
The number(s) or item(s) that appear most often in a set of data.
Negative numbers
A number that is less than zero.
Opposites
Numbers that are the same distance from zero in opposite directions.
Outlier
A value that is much higher or lower than the other values in a set of data.
Positive numbers
A number that is greater than zero.
Range
The difference between the greatest number and the least number in a set of data.
Stem-and-leaf plot
A system used to condense a set of data where the greatest place value of the data forms the stem and the next greatest place value forms the leaves.
Stems
The greatest place value common to all the data that is written to the left of the line in a stem-and-leaf plot.
Vertical axis
The axis on which the scale and interval are shown in a bar or line graph.
