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In a certain examination, the percentage of Passes and distinction were 46 and 9 respectively. Assuming the marks to be distributed normally, determine thẻ average marks obtained by the candidates, the minimum Pass and distinction marks being 40 and 75 respectively. Also, determine, what should have been the minimum qualifying marks for admission to a reexamination of the failed candidates, had it been desired that the best 25% of them should be given another opportunity of being examined.

In a certain examination, the percentage of Passes and distinction were 46 and 9 respectively. Assuming the marks to be distributed normally, determine thẻ average marks obtained by the candidates, the minimum Pass and distinction marks being 40 and 75 respectively. Also, determine, what should have been the minimum qualifying marks for admission to a reexamination of the failed candidates, had it been desired that the best 25% of them should be given another opportunity of being examined.

MATLAB: An Introduction with Applications
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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Illustration 105. In a certain examination, the percentage of Passes and distinction were 46 and 9 respectively. Assuming the marks to be distributed normally, determine thẻ average marks being 40 and 75 respectively. marks obtained by the candidates, the minimum Pass and distinction Also, determine, what should have been the minimum qualifying marks for admission to a reexamination of the failed candidates, had it been desired that the best 25% of them should be given another opportunity of being examined.
Transcribed Image Text:Illustration 105. In a certain examination, the percentage of Passes and distinction were 46 and 9 respectively. Assuming the marks to be distributed normally, determine thẻ average marks being 40 and 75 respectively. marks obtained by the candidates, the minimum Pass and distinction Also, determine, what should have been the minimum qualifying marks for admission to a reexamination of the failed candidates, had it been desired that the best 25% of them should be given another opportunity of being examined.
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