Dr Martinez Conducted a Survey to Determine the Frequency of Sexual

Multiple Choice

Dr. Martinez conducted a survey to determine the frequency of sexual activity among the American middle class. He collected data from several individuals working at various multinational companies and concluded that an average middle-class American engages in sexual activity once in a week. In this scenario, Dr. Martinez's research sample is most likely a ________.

A) biased sample
B) representative sample
C) multistage sample
D) stratified sample