Grading the students performance.

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Given the correct key in the form of an array correct_key='.........'; write a program to evaluate the grade of a student from the answer key. use -1 if answer is wrong, 10 if answer is correct and 0 if no answer.
  1 Comment
RITTIK KUMAR GHOSH
RITTIK KUMAR GHOSH on 13 Nov 2014
being more specific, there were total of 8 questions carrying 10 marks for a correct answer and -1 for wrong answer and 0 for an unattended question. how to evaluate it?

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Accepted Answer

MA
MA on 13 Nov 2014
%w=wrong
%c=correct
%o=unanswered
syms w c o
s=0;
for i=1:5
g(i)=input('answer= ');
if g(i)==w
s=s-1;
elseif g(i)==c
s=s+10;
elseif g(i)==o
s=s+0;
end
end
display('grade')
display(s)
  4 Comments
MA
MA on 14 Nov 2014
you're welcome

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More Answers (1)

RITTIK KUMAR GHOSH
RITTIK KUMAR GHOSH on 14 Nov 2014
1.When I am putting in the answers as 10 0 -1 10 10, the grade remains the same in each case, it is not changing and showing the result 0. why is it so? 2.Why there are 2 spaces in this script('answer= ') can you please explain?
  4 Comments
RITTIK KUMAR GHOSH
RITTIK KUMAR GHOSH on 15 Nov 2014
thanks for all the help, got it correct

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