Frequency and Histograms

Vocabulary:

Frequency: The number of data values in an interval. Frequency Table: A table that groups a set of data values into

intervals and shows the frequency for each interval. Histogram: A graph that can display data from a frequency table. Cumulative Frequency Table: A table that shows the number of data

values that lie in or below a given interval.

Frequency:

Frequency:

Example: What is the frequency of each range?

Histograms:

Uniform:

Histograms:

Symmetric:

Histograms:

Skewed:

Histograms:

Example: What type of histogram is this?

Histograms:

Example: What type of histogram is this?

Histograms:

Example: What type of histogram is this?

Histograms:

We’re going to draw histograms. If you wanna come on down, come on down.

Histograms: