A manufacturer of jeans has plants in California, Arizona, and Texas. A group of 25 pairs of jeans is randomly selected from the computerizeddatabase, and the state in which each is produced is recorded:CA       AZ         AZ             TX            CACA       CA         TX              TX           TXAZ       AZ          CA             AZ           TXCA       AZ          TX              TX           TXCA      AZ           AZ             CA            CAa. What is the experimental unit?b. What is the variable being measured? Is it qualitative 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 Texas?f. What state 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? Whatconclusions can you draw from these data?

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Bar Graphs

A bar graph is a chart or graphical representation of data. A bar chart, also known as a bar graph, is a graph or chart that displays categorical data using rectangular bars with heights or lengths equal to the values they represent. Typically, bar graphs show categorical and numerical variables grouped in class intervals. A bar graph is useful for comparing and analyzing a set of data.