We wish to predict the outcome of a local mayoral election,and poll 500 of the 4000 likely voters to see how many favor the incumbent.

A) Yes,assuming the 500 people are unrelated.
B) No.The probability of success is the same on every trial.
C) No.The responses are independent.
D) No.There are more than two possible outcomes.
E) No.500 is more than 10% of 4000.

Question

Tracy Manzueta · Accepted Answer

Final Answer : E, Explanation :  When sampling without replacement, the sample size should be less than 10% of the population to ensure independence. Here, 500 is more than 10% of 4000, which may affect the independence of the sample.

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