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An alcohol awareness task force at Big-Ten university sampled 20 students after the midterm to ask them whether they went bar hopping the weekend before the midterm or spent the weekend studying, and whether they did well or poorly on the midterm. The following result was obtained.
Did Well on Midterm Did Poorly on Midterm
Studying for exam 80 20
Went Bar Hopping 30 70
Referring to the table, what is the probability that a randomly selected student who went bar hopping will do well on the midterm? 1. 30/100 or 30% 2. 30/110 or 27.27% 3. 30/200 or 15% 4. (100/200) * (110/200) or 27.50%
Which conditional distributions do these statistics refer to, those of y at given catagories of x, or those of x at given categories of y? Set up a table with race of murderers as rows and race of victims as columns, showing the two conditional di..
A professor receives, on average, 24 emails from students the day before the midterm exam. To compute the probability of receiving at least 10 emails on the next day before the midterm she would use which probability distribution?
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Collapse the response categories in the following tables so that it meets the assumptions of the chi-square test; than perform the test.
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The accompanying table summarizes randomly selected sample data for San Francisco Defendants in burglary cases.
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