The marks of the students are normally distributed. 10% get more than 75 marks and 20% get less than 40 marks. Find the mean and standard deviation of distribution. The relevant extract of Area Table (under the normal curve) is given below : 2.0 1.28 0.3997 0.84 0.4772 Area 0.2995

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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The marks of the students are normally distributed. 10% get more than 75 marks and
20% get less than 40 marks. Find the mean and standard deviation of distribution.
The relevant extract of Area Table (under the normal curve) is given below :
2.0
0.4772
0.84
1.28
Area
0.2995
0.3997
Transcribed Image Text:The marks of the students are normally distributed. 10% get more than 75 marks and 20% get less than 40 marks. Find the mean and standard deviation of distribution. The relevant extract of Area Table (under the normal curve) is given below : 2.0 0.4772 0.84 1.28 Area 0.2995 0.3997
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