Browser An on-line retailer identified the web browser being used by a sample of 1,447 shoppers to its online site in 2012. Each row in the data table for this question identifies the browser being...

Browser An on-line retailer identified the web browser being used by a sample of 1,447 shoppers to its online site in 2012. Each row in the data table for this question identifies the browser being used by a shopper. Previously in 2010, 63% of shoppers used Internet Explorer, 24% Firefox, 5% Chrome, 4% Safari, and 4% Opera.

(a) Using software, tabulate the frequency of the choice of browser used by these shoppers.

(b) Present a bar chart and a pie chart of these frequencies. Which is more useful to compare the distribution of these to those observed in 2010?

(c) Do you see any changes in the distribution of the choice of browser?