Question 1
At the U.S. Open Tennis Championship a statistician keeps track of every serve that a player hits during the tournament. The statistician reported that the mean serve speed of a particular player was 95 miles per hour. Suppose that the statistician indicated that the serve speed distribution was skewed to the left. Which of the following values is most likely the value of the median serve speed?
◦ 81 mph
◦ 88 mph
◦ 95 mph
◦ 102 mph
Question 2
The amount spent on textbooks for the fall term was recorded for a sample of five hundred university students. The mean expenditure was calculated to be $500 and the median expenditure was calculated to be $425. Which of the following interpretations of the mean is correct?
◦ 50% of the students sampled had textbook costs equal to $500
◦ The average of the textbook costs sampled was $500
◦ The most frequently occurring textbook cost in the sample was $500
◦ 50% of the students sampled had textbook costs that were less than $500
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Part of a Semantic Network in Long-Term Memory
Suppose that we have a sample space with five equally likely experimental outcomes: E1, E2, E3, ...