17 Four hundred eligible voters of a city are polled to obtain information on voting intentions in an upcoming city election The

Question

17 Four hundred eligible voters of a city are polled to obtain information on voting intentions in an upcoming city election The 400 eligible voters in this study example of a n a sample b observation c parameter d population e None of the above 18 The third quartile represents the a 25th percentile b median c 75th percentile d mode e None of the above Questions 19 20 The response to a survey question has three alternatives A B and C A sample of 780 responses provided 273 alternative A and 312 alternative B 19 What is the frequency of alternative C a 195 b 520 c 615 d 255 e 631 20 What is the relative frequency of alternative B a 0 15 b 0 25 c 0 35 d 0 40 e 0 55 21 Which of the following is NOT a measure of variability a Standard deviation b Mean c Range d Inter quartile range e Variance an

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