An examination paper has 150 multiple-choice questions of one mark each, with…
GATE · 2004 · CS
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
Attempted by 21 students.
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