## Discussion Forum

Que. | 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 |

Answer:9375 |