Financial analyst Larry Potts needs a sample of 100 securities listed on either the Toronto Stock Exchange (TSX) or the New York Stock Exchange (NYSE) .According to the Report on Business Magazine's "Stock Market Data Bank," 2,531 TSX securities and 746 NYSE securities were traded on the previous business day.Larry directs his staff to randomly select 77 TSX and 23 NYSE securities.His sample is a ___.
A) disproportionate systematic sample
B) disproportionate stratified sample
C) proportionate stratified sample
D) proportionate systematic sample
E) proportionate cluster sampling
Correct Answer:
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