1. The percent of Americans older than 18 who don’t use internet.
15%

2. The percent of non-Internet users that are older than 65
49%

3. The percent of adults without HS diploma who are offline
41%

4. The percent of adults in households making less than $30,000 a year who don’t use the Internet.
25%

5. The percent of offline people surveyed who said that the Internet is not relevant to them.
34%

6. The percent cited problems with using technology
32%

7. The percent of nonuser cited concerns about the expense of owing a computer or paying for Internet connection.
19%

8. Representing Data graphically
There are several ways to represent data graphically. We are going to study 6 ways.

9. Histogram: a graph that displays the data by using contiguous vertical bars (unless the frequency of a class is 0) of various heights to represent the frequencies of the classes.

10. Frequency Polygon: a graph that displays the data by using lines that connect points plotted for the frequencies at the midpoints of the classes. The frequencies are represented by the heights of the points

11. Ogive: a graph that represents the cumulative frequencies for the classes in a frequency distribution

12. Pareto Chart: a chart that is used to represent a frequency distribution for a categorical variable, and the frequencies are displayed by the heights of vertical bars, which are arranged in order from highest to lowest

13. Some fancy variations!

14. Time series graph: graph representing data that occurs over a specific period of time

15. Pie Graph: A circle graph that is divided into sections or wedges according to the percentage of frequencies in each category of the distribution

16. Stem and leaf plot: A data plot that uses part of the data value as the stem and part of the data value as the leaf to form groups or classes

17. Back to back stem and leaf

18. Suggested reading Page 29 Chapter Quiz 1 Page 91 Tech notes