1.11 Jeans A manufacturer of jeans has plants in Quebec (QC), Ontario (ON), and Manitoba (MB). A group of 25 pairs of jeans is randomly selected from the computerized database, and the province in which each is produced is recorded:

a. What is the experimental unit?

b. What is the variable being measured? Is it qualita- tive or quantitative?

c. Construct a pie chart to describe the data.

d. Construct a bar chart to describe the data.

e. What proportion of the jeans are made in Quebec?

f. What province produced the most jeans in the group? g. If you want to find out whether the three plants produced equal numbers of jeans, or whether one produced more jeans than the others, how can you use the charts from parts c and d to help you? What conclusions can you draw from these data?