3. a) b) C) d) E) 4. ZIP code is a good example of which measurement scale? Nominal data Ordinal data Interval data Ratio data Descriptive data In what way(s] is(are) the concept of geometric mean useful In evaluating investment returns in calculating average growth rates In assessing the dispersion of the data Both in evaluating investment returns and in calculating average growth rates Geometric mean is not useful at all The following data shows the actual talk time of 11 users' iPhones in hours: 10.4, 27.5, 26.4, 23.4, 241,213,193, 21.3,23.0,17.2 What is the 60th percentile in the dataset? 222 23.5 21.3 23 24.1 Based on the published mean and standard deviation, the human resource specialist calculated the z-score associated with his own salary to be 2.50. This tells him that his salary is: 2 and a half times more than the average salary 2 and a half times less than the average salary is 2.5 standard deviations above the average salary is 2.5 standard deviations below the average salary none of the above Older people visit their physician on an average of four visits in a year. Determine the average number of monthly visits and the standard deviation. 0.2835 and 0.5774 0.3333 and 0.5774 0.7165 and 0.5747 0.1728 and 0.5554 None ofthe above 6. 10. A sports commentator asks a sports enthusiast regarding Philadelphia Flyers' performance in the last hockey game as to whether they are excellent, good, fair, or poor. Which of the following describes the measurement? a] nominal data b) ordinal data c] interval data d] ratio data 13] ordinary data The intersection of events A = [apple pie, peach pie, pumpkin pie) and B = (cherry pie, blueberry pie, pumpkin pie) is a] [pumpkin pie] b) apple pie, peach pie, cherry pie, blueberry pie} c] [apple pie, peach pie, pumpkin pie, cherry pie, blueberry pie] 0]] [apple pie, peach pie, pumpkin pie, cherry pie, blueberry pie, pumpkin pie] e] [cherry pie] Sales for Adidas grew at a rate of 0.5 196 in Year 1, 0.0213 in Year 2, 0.0485 in Year 3, and ?2-0.0387 in Year 4. The average grth rate for Adidas during these four years is the closest to a] 0.49% b) 11.83% c] 13.77% 01] 14.02% e] 15.26% A pair of dice is thrown. What is the probability that one ofthe faces is a 4, given that the sum of the two faces is 9? a] 1 / 3 b] 1 / 36 c) 1 / 6 cl) 1/2 e] 1 / 7 If P(A} = .62, P(B} = 56, and P(A 76? B) = .70, then P(B | A) a) 0.4800 b) 0.7742 c) 0.9032 d) 0.5402 e) None of the choices is correct