Dr. Groppe, a professor in the School of Computing at Klaggen University, is using a standardized final exam that is "nationally normed" for his Computer Science II class. Nationally normed implies that the normal distribution is an appropriate approximation for the probability distribution of students' scores on the exam. The probability distribution of students' scores on this standardized exam can be estimated using the normal distribution shown below. Note: An inflection point is a calculus term that indicates a point on a curve where the curve changes from curving up to curving down or vice versa. The distance along the x-axis from one inflection point to the mean is equal to the value of the standard deviation of the particular normal distribution. Inflection Inflection Point Point x 70 78 86 1. State the mean of the distribution of the computer science exam scores based on the figure above. 2. State the standard deviation of the computer science exam scores based on the figure above.
Dr. Groppe, a professor in the School of Computing at Klaggen University, is using a standardized final exam that is "nationally normed" for his Computer Science II class. Nationally normed implies that the normal distribution is an appropriate approximation for the probability distribution of students' scores on the exam. The probability distribution of students' scores on this standardized exam can be estimated using the normal distribution shown below. Note: An inflection point is a calculus term that indicates a point on a curve where the curve changes from curving up to curving down or vice versa. The distance along the x-axis from one inflection point to the mean is equal to the value of the standard deviation of the particular normal distribution. Inflection Inflection Point Point x 70 78 86 1. State the mean of the distribution of the computer science exam scores based on the figure above. 2. State the standard deviation of the computer science exam scores based on the figure above.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Transcribed Image Text:Dr. Groppe, a professor in the School of Computing at Klaggen University, is using a standardized final exam that
is "nationally normed" for his Computer Science II class. Nationally normed implies that the normal distribution is
an appropriate approximation for the probability distribution of students' scores on the exam. The probability
distribution of students' scores on this standardized exam can be estimated using the normal distribution shown
below.
Note: An inflection point is a calculus term that indicates a point on a curve where the curve changes from curving up to curving down or
vice versa. The distance along the x-axis from one inflection point to the mean is equal to the value of the standard deviation of the
particular normal distribution.
Inflection
Inflection
Point
Point
x
70 78
86
1. State the mean of the distribution of the computer science exam scores based on the figure
above.
2. State the standard deviation of the computer science exam scores based on the figure above.
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