Question

The grades on the final examination given in a large organic
chemistry class are normally distributed with a mean of 72 and a
standard deviation of 8. The instructor of this class wants to
assign an “A” grade to the top 10% of the scores, a “B” grade to
the next 10% of the scores, a “C” grade to the next 10% of the
scores, a “D” grade to the next 10% of the scores, and an “F” grade
to all scores below the 60^{th} percentile of this
distribution. For a letter grade of A, find the lowest acceptable
score within the established range. Provide your answer in the
format XX.X, for example, 93.4.

Answer #1

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uestion 1
1. A set of final examination grades in an introductory
statistics course is normally distributed with a mean of 73 and a
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a) What is the probability of getting a grade of 91or less on
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b) what is the probability that a student scored between 65
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higher than than what grade?
d) If the professor grades on a...

Question 1
1. A set of final examination grades in an introductory
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a) What is the probability of getting a grade of 95 on this
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b) What is the probability that a student scored less than 55
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c) The probability is 8% that a student taking the test scores
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d) If the professor grades on...

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Show work
a) A teacher informs her computational physics class (of 500+
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In a large section of a Statistics class. The scores for the
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Scores of students in a large Statistics class are normally
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Find the probability that a student scores more than 80
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If 100 students are picked at random, how many do you expect to
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If top 10% of students obtain an A grade, how much should a
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The next two questions 4-5 are based on the following
information.
A set of final examination grades in an introductory statistics
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deviation of 8. 4.
What is the probability that a student scored below 91 on this
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If the professor grades on a curve (i.e., gives As to the top 10
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Scores of students in a large Statistics class test are normally
distributed with a mean of 75 points and a standard deviation of 5
points.Find the probability that a student scores more than 80
pointsIf 100 students are picked at random, how many do you expect
to score below 70 points?If top 10% of students obtain an A grade,
how much should a student obtain to get an A grade.Suppose four
students are picked at random, find the probability that...

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