Scores on a statistics final in a large class were normally distributed with a mean of 79 and a standard deviation of 12 . Use the TI-84 PLUS calculator to answer the following. Round the answers to at least two decimals. (a) Find the 36th percentile of the scores. (b) Find the 70th percentile of the scores. (c) The instructor wants to give an A to the students whose scores were in the top 12% of the class. What is the minimum score needed to get an A?
Scores on a statistics final in a large class were normally distributed with a mean of 79 and a standard deviation of 12 . Use the TI-84 PLUS calculator to answer the following. Round the answers to at least two decimals. (a) Find the 36th percentile of the scores. (b) Find the 70th percentile of the scores. (c) The instructor wants to give an A to the students whose scores were in the top 12% of the class. What is the minimum score needed to get an A?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Scores on a statistics final in a large class were normally distributed with a mean of
and a standard deviation of
. Use the TI-84 PLUS calculator to answer the following. Round the answers to at least two decimals.
percentile of the scores.
percentile of the scores.
of the class. What is the minimum score needed to get an A?
of the scores? (Enter the smaller number in the first box.)
79
12
(a) Find the
36th
(b) Find the
70th
(c) The instructor wants to give an A to the students whose scores were in the top
12%
(d) Between what two values are the middle
66%
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Betwen what two values are the middle 66% of the scores?
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