Financial Analyst Larry Potts Needs a Sample of 100 Securities

Multiple Choice

Financial analyst Larry Potts needs a sample of 100 securities listed on the Toronto Stock Exchange.In the current issue of the Report on Business Magazine,2,531 securities are listed in the "Toronto Exchange Composite Transactions," an alphabetical listing of all securities traded on the previous business day.Larry randomly selects the 7th security as a starting point,and selects every 25th security thereafter (7,32,57,etc. ) .His sample is a ___.

A) quota sample
B) simple random sample
C) stratified sample
D) systematic sample
E) cluster sample