is one advantage of random sampling? O Our sample is more representative of the overall population from which it is drawn. O We can make sure we have an equal representaton across gender. O We have...

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Extracted text: is one advantage of random sampling? O Our sample is more representative of the overall population from which it is drawn. O We can make sure we have an equal representaton across gender. O We have more power to detect an effect between our IV and DV. O We can get larger samples. QUESTION 7 "If a given set of piano performances are graded with a mean = 80 and a standard deviaton = 8, what is the Z-score of a performance graded an 84?" O 84 O 2 O 0.5 O 8 QUESTION 8 "Among a group of coworkers, 12 choose pizza for lunch and 8 students choose sushi. A random sample (with replacement) of n = 2 workers is chosen. If the first worker is having sushi, what is the probability that the next worker is having pizza?" O p(pizza) = .60 O P(pizza) = .35 O P(pizza) = .368 O p(pizza) = 44 $ %23 E G