In an Experiment to Test the Effectiveness of the Latest

question 210

Multiple Choice

In an experiment to test the effectiveness of the latest roach trap, the "Roach Resort"; 70 roaches were placed in the vicinity of the trap and left there for an hour. At the end of the hour, it was observed that 42 of them had "checked in" while the rest were still scurrying around. (Remember that "once a roach checks in, it never checks out.") If a roach begins outside the "Resort", what is the probability of it "checking in" by the end of 3 hours ?

• A)0.4
• B) 1
• C) 0.36
• D) 0.936
• E) 0.216

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Definitions:

Simple Random Sample

A particular type of probability sample in which every member of the population has an equal chance of being selected.

Demographic Variables

Characteristics used to segment populations for study, such as age, gender, income, education, and ethnicity.

Equal Chance

The principle that all individuals should have the same opportunity to access resources, rights, and opportunities without discrimination.

Content Analysis

A research method used to interpret and analyze the content of various forms of media through coding and categorizing textual material.