Final exam scores in a mathematics course are normally distributed with a mean of 66 and a standard deviation of 5. Based on the above information and a Z-table, fill in the blanks in the table below. Precision and other notes: (1) Percentiles should be recorded in percentage form to three decimal places. (2) Note that this problem does not use the rough values of the 68-95-99.7 rule (that is, the empirical rule); instead you must use more precise Z-table values for percentiles. Please calculate z-scores to 2 decimal places and use those to find the indicated percentiles. Exam score Z-score Percentile 81 69.35 2.28

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Final exam scores in a mathematics course are normally distributed with a mean of 66 and a standard deviation of
5. Based on the above information and a Z-table, fill in the blanks in the table below.
Precision and other notes: (1) Percentiles should be recorded in percentage form to three decimal places.
(2) Note that this problem does not use the rough values of the 68-95-99.7 rule (that is, the empirical rule); instead you must
use more precise Z-table values for percentiles. Please calculate z-scores to 2 decimal places and use those to find the
indicated percentiles.
Exam score
Z-score
Percentile
81
69.35
2.28
Transcribed Image Text:Final exam scores in a mathematics course are normally distributed with a mean of 66 and a standard deviation of 5. Based on the above information and a Z-table, fill in the blanks in the table below. Precision and other notes: (1) Percentiles should be recorded in percentage form to three decimal places. (2) Note that this problem does not use the rough values of the 68-95-99.7 rule (that is, the empirical rule); instead you must use more precise Z-table values for percentiles. Please calculate z-scores to 2 decimal places and use those to find the indicated percentiles. Exam score Z-score Percentile 81 69.35 2.28
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Given mean =66 ,s.d =5

Find missing Exam Score, Z score and percentile

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