The following table lists the total revenue for each of a few selected companies for the year 2014

Company                                                Revenue for Fiscal Year 2014
                                                                                (millions of dollars)
Walmart ......................................................................476,294
Exxon Mobil ................................................................407,666
Apple ............................................................................170,910
General Motors ...........................................................155,427
Ford Motor ...................................................................146,917
General Electric ............................................................146,231

Explain the meaning of a member, a variable, a measurement, and a data set with reference to this table