Ch $02$: Mastery Assignment $-$ Descriptive Statistics: Tabular and Graphical Displays

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$4.$ Summarizing categorical data $-$ Pie charts

The market capitalization of a publicly traded company is its stock price multiplied by the number of its outstanding shares.

The Standard & Poor's $($S&P$)500$ Index lists $500$ of the largest publicly traded companies $($by market capitalization$)$ in the United States. It considered the leading indicator of the U$.$S$.$ equities market.

The S&P $500$ companies are classified into $10$ industry sectors according to the Global Industry Classification Standard $($GICS$)$ developed b$.$ Stanley Capital International $($MSCI$)$ and S&P$.$

A data set containing the names of these companies and their GICS codes and sectors is displayed in the following DataView tool.