Q12
An examination paper has 150 multiple-choice questions of one mark each, with each question having four choices. Each incorrect answer fetches -0.25 mark. Suppose 1000 students choose all their answers randomly with uniform probability, The sum total of the expected marks obtained by all these students is
A.
0
B.
2550
C.
7525
D.
9375
AnswerAnswer: Option D
Solution
Answer: Option D
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