Question
In: Math
If grading times are independent and the instructor begins grading at 6:50 P.M. and grades continuously
There are 40 students in an elementary statistics class. On the basis of years of experience, the instructor knows that the time needed to grade a randomly chosen first examination paper is a random variable with an expected value of 6 min and a standard deviation of 6 min.
a. If grading times are independent and the instructor begins grading at 6:50 P.M. and grades continuously, what is the (approximate) probability that he is through grading before the 11:00 P.M. TV news begins?
b. If the sports report begins at 11:10, what is the probability that he misses part of the report if he waits until grading is done before turning on the TV
Solutions
milcah answered 2 years agoRelated Solutions
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An instructor grades exams, 20%; term
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Stories in the Tallest Buildings The number
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1a)
Let S = $55, K = $50, r = 6% (continuously compounded), d = 2%,
s = 40%, T = 0.5, and n = 5. In this situation, the appropriate
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Answers:
a.
0.5316
b.
0.4998
c.
0.3738
d.
0.4146
e.
0.4684
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Let S =...
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