Tutorial 5 - Applications of the Standard Normal Distribution The average hourly earnings of student tutors are R20 with a standard deviation of RIO.
Assume the hourly earnings of tutors are normally distributed.
a) If a tutor is selected at random what is the probability that he she earus
between R20 and R30 per hour for tutoring,
b) What is the probability that a tutor earns between Ris and R25 per hour?
c) What is the cut off hourly earnings to be in the top 10 percent?
d) Suppose there are 20 tutors in the sample studied, how many earn at least R25
per hour?
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What are the ramifications of different interpretations of the relationship between loac and human right laws?

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Which of the following statements best illustrates an argument on whether congress is effective on providing oversight of the bureaucracy? a. congress is very effective in providing oversight of the bureaucracy. b. congress is not very effective in providing oversight to the bureaucracy because they lack the technical expertise and they are part of the iron triangles that create a relationship with the bureaucracy and interest groups to show more a. congress is very effective in providing oversight of the bureaucracy. b.congress is not very effective in providing oversight to the bureaucracy because they lack the technical expertise and they are part of the iron triangles that create a relationship with the bureaucracy and interest groups to further their own interests and not necessarily the public interest. c.congress provides effective oversight of the bureaucracy through the budgetary process. d.congress is not effective in providing oversight because of the budget and enabling legislation.