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Use the following results: In the judicial case of United States v. City of Chicago, discrimination was charged in a qualifying exam for the position of Fire Captain. In the table below, Group A is a minority group and Group B is a majority group.
Passed
Failed
Group A
10
14
Group B
417
145
a) If one of the test subjects is randomly selected, find the probability of getting someone who passed the exam.
b) Find the probability of randomly selecting one of the test subjects and getting someone who is in Group B or passed.
c) Find the probability of randomly selecting two different test subjects and finding that they are both in Group A.
d) Find the probability of randomly selecting one of the test subjects and getting someone who is in Group A and passed the exam.
e) Find the probability of getting someone who passed, given that the selected person is in Group A.
A health club has six tennis courts. The owner hypothesizes that his patrons have no preference for a particular court. He observes how many people play on each court on a particular day. Compute the expected value for the data shown below.
1. what information does calculating standard deviation provide? how is the z-score related to standard deviation?2.
The following lab is to give you a chance to generate your own graphs and statistics using software.
Assuming both assertions are correcting and assuming normal distributions, which review book is more likely to result in an SAT gain over 60 points?
Suppose that a model for the joint distribution of these rvs is a bivariate normal distribution.
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Describe the standard normal distribution. Explain why it can be used to find probabilities for all normal distributions.
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