Chapter 8: Rational Expressions
Numbers in the Real World

That's Stats
 

Statistics is the result of an analysis of some raw data.  Who analyzes the data and what safeguards were in place to protect against invalid testing are always key questions to ask about statistics. 

Consider the following data:

Bowling Scores
John Green 192 184 216 204
Jay Collins 165 175 172 289
Bob Smith 188 174 188 188

Who is the best bowler? What should you base your answer on?  Who would you want on your bowling team?

The first statistical measurement that everyone learns is the mean or average.  What is each bowler's average?
John Green? Jay Collins? Bob Smith?
If you, the captain of your bowling team, looked only at their averages, who would you pick to be on your team?
If you saw all of their scores, who would you pick? Would you pick the same person?

A basic principle of advertising is to state the most impressive characteristic(s) of the person or product being sold. In many cases this could mean using incomplete data or telling only part of the story. If you were the Public Relations manager for each bowler, what one statement would you say to make each player sound better than the others?


Check Your Answers