Elementary Statistics Chapter 2

Front 1

A representative or average value that indicates where the middle of the data set is located.

Back 1

Center

Front 2

A measure of the amount that the data values vary among themselves.

Back 2

Variation

Front 3

The nature or shape of the distribution of the data(such as bell-shaped, uniform, or skewed).

Back 3

Distribution

Front 4

Sample values that lie very far away from the vast majority of the other sample values.

Back 4

Outliners

Front 5

Changing characteristics of the data over time.

Back 5

Time

Front 6

Lists data values, along with their corresponding frequencies.

Back 6

Frequency distribution

Front 7

The smallest numbers that can belong to the different classes.

Back 7

Lower class limits

Front 8

The largest numbers that can belong to the different classes.

Back 8

Upper class limits

Front 9

The numbers used to separate classes, but without the gaps created by class limits.

Back 9

Class boundaries

Front 10

The values in the middle of the class.

Back 10

Class midpoints

Front 11

The difference between two consecutive lower class limits or two consecutive lower class boundaries.

Back 11

Class width

Front 12

A bar graph in which the horizontal scale represents classes of data values and the vertical scale represents frequencies.

Back 12

Histogram

Front 13

Uses line segments connected to points located directly above class midpoint values.

Back 13

Frequency polygon

Front 14

A line graph that depicts cumulative frequencies, just as the cumulative frequency distribution in the preceding lists cumulative frequencies.

Back 14

Ogive

Front 15

Consists of a graph in which each data value is plotted as a point along a scale of values.

Back 15

Dotplot

Front 16

Represents data by separating each value into two parts: the stem and the leaf.

Back 16

Stemplot(or stem-and-leaf plot)

Front 17

A bar graph for qualitative data, with the bars arranging in order according to frequencies.

Back 17

Pareto chart

Front 18

A graph depicting qualitative data as slices of pie.

Back 18

Pie chart

Front 19

A plot of paired data with horizontal x-axis and a vertical y-axis.

Back 19

Scatterplot(or scatter diagram)

Front 20

A graph of time-series data, which are data that have been collected at different points in time.

Back 20

Time-series graph