Question | Answer |
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 designated number. |
frequency | the number of times an item occurs. |
graph | a visual way to display data. |
horizontal axis | the axis on which the categories or values are shown in a bar and line graph. |
integers | the whole numbers and their opposites |
key | a sample data point used to explain the stems and leaves 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 of data. |
key | a sample data point used to explain the stems and leaves 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 of data. |
measures of central tendency | numbers that are used to describe the center of a set of data. these measures include the mean, median, and mode. |
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 0. |
opposites | numbers that are the same distance from zero in opposite directions. |
outlier | a value that is much higher or much 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. |
vertical axis | the axis on which the scale and interval are shown in a bar or line graph. |