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a. if one of the pedestrians death is randomly selected what is the probability that it involves an intoxicated pedestrian and an intoxicated driver?
b. If two different pedestrian deaths are randomly selected what is the probability that in both cases both the pedestrian and the driver were intoxicated?
Driver Intoxicated?
Yes
No
Pedestrian Intoxicated?
59
266
no
79
581
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At the .05 significance level, is there a difference in the mean number of calls per day between the two employees?
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One approach would be to contact every psychology graduate student you know and ask them to fill out a questionnaire about it.
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