Math 6/7 Accelerated Unit Vocabulary

Vocabulary terms and definitions from the Math 6/7 Accelerated statistics unit.

Box Plot

A graph that shows the 5-number summary of a data set.

Categorical Data

Data that describes qualities or categories.

Distribution

The way data values are spread out or arranged.

Dot Plot

A graph that shows data points on a number line.

Frequency

The number of times a value or category occurs.

Histogram

A graph that shows the frequency of data in intervals.

Interquartile Range (IQR)

The distance between the first quartile ($Q1$) and third quartile ($Q3$).

Maximum Value

The greatest value in a data set.

Mean

The average of a data set; found by fair sharing.

Median

The middle value in a data set when ordered.

Minimum Value

The least value in a data set.

Mode

The value that occurs most often.

Measures of Center

Numbers that describe the middle or typical value (mean, median, mode).

Measures of Spread

Numbers that describe how spread out the data is (range, IQR).

Outlier

A data value that is far from the rest of the data.

Range

The difference between the maximum and minimum values.

Statistical question

A question that anticipates variability in the data.

Statistics

The study of collecting, organizing, analyzing, and interpreting data.

Symmetrical or Non-Symmetrical

Describes the shape of a distribution.

Variability

How much the data values differ from each other.

Numerical Data

Data that consists of numbers.

Right Skew