Page 566 - Basic College Mathematics with Early Integers

GROUP ACTIVITY 543

Chapter 7 Group Activity

Survey Data Summary Sections 7.1, 7.3 respondents’ ages that fall into each category. Make a
bar graph of your results. What does this graph tell
This activity may be completed by working in groups
you about the ages of your survey respondents?
or individually.
How often have you read an article in a newspaper or in 3. Find the average age of your survey respondents.
a magazine that included results from a survey or poll?
Surveys seem to have become very popular ways of get-
4. Find the median age of your survey respondents.
ting feedback on anything from a political candidate, to
a new product, to services offered by a health club. In
this activity, you will conduct a survey and analyze the 5. Find the mode of the ages of your survey respondents.
results.

1. Conduct a survey of 30 students in one of your 6. Compare the mean, median, and mode of your
classes.Ask each student to report his or her age. age data. Are these measures similar? Which is
largest? Which is smallest? If there is a noticeable
difference between any of these measures, can you
2. Classify each age according to the following cate-
explain why?
gories: under 20, 20 to 24, 25 to 29, 30 to 39, 40 to 49,
and 50 or over. Tally the number of your survey