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Mathematics, 21.01.2020 21:31, penacesar18p9jrdh
Aset of final examinations grades in an introductory statistics course is normally distributed, with a mean of 75 and a standard deviation of 7. complete parts (a) through (d).
a.) what is the probability that a student scored below 87 on this exam?
b.) what is the probability that a student scored between 68 and 90?
c.) the probability is 25% that a student taking the test scores higher than what grade?
d.) if the professor grades on a curve (for example, the professor could give a
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