Now You Try!

Histogram


1) Qualitative Data

A survey was taken on how much trust people place in the information they read on the Internet. Construct a categorical frequency distribution for the data. A = trust in all that they read, M = trust in most of what they read, H = trust in about one-half of what they read, S = trust in a small portion of what they read. (Based on information from the UCLA Internet Report.) Use the following frequency table to draw the corresponding histogram.

Trust Frequency
A 4
M 28
H 6
S 2


2) Quantitative Data

The frequency distribution represents the cost (in cents) for the utilities of states that supply much of their own power. Construct a histogram.

Class Frequency
6-8 12
9-11 16
12-14 3
15-17 1
18-20 0
21-23 0
24-26 1

3) Quantitative Data

The salaries (in millions of dollars) for 31 NFL teams for a specific season are given in this frequency distribution. Construct a histogram.

Class Frequency
39.9-42.8 2
42.9-45.8 2
45.9-48.8 5
48.9-51.8 5
51.9-54.8 12
54.9-57.8 5