Suppose that, for a certain exam, a teacher grades on a curve. 2.2% 2.2% 34.1% 34.1% 0.1% 0.1% 13.6% 13.6% H-30 µ-20 µ-lo u+lo µ+2o µ+3o t is known that the mean is 60 and the standard deviation is 5. There are 40 students in the class. (Round your answers to he nearest whole number.) (a) How many students should receive a C? |student(s) (b) How many students should receive an A? student(s)
Suppose that, for a certain exam, a teacher grades on a curve. 2.2% 2.2% 34.1% 34.1% 0.1% 0.1% 13.6% 13.6% H-30 µ-20 µ-lo u+lo µ+2o µ+3o t is known that the mean is 60 and the standard deviation is 5. There are 40 students in the class. (Round your answers to he nearest whole number.) (a) How many students should receive a C? |student(s) (b) How many students should receive an A? student(s)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:Suppose that, for a certain exam, a teacher grades on a curve.
2.2%
2.2%
34.1% 34.1%
0.1%
0.1%
13.6%
13.6%
μ-3σ μ-2σ μ-Ισ
u+lo µ+2o pu+3o
It is known that the mean is 60 and the standard deviation is 5. There are 40 students in the class. (Round your answers to
the nearest whole number.)
(a) How many students should receive a C?
student(s)
(b) How many students should receive an A?
| student(s)
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