pkprincekumar802212 pkprincekumar802212
  • 24-05-2023
  • Mathematics
contestada

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?

Respuesta :

Otras preguntas

A gas has a pressure of 4.62 atm when its volume is 2.33 L. What will be the pressure of the gas if the volume is changed to 1.03 L under conditions of constant
A force of 20. Newtons to the left exerted on a cart for 10. Seconds. For what period of time must a 50.-newton force to the right act to produce an impulse of
dalia saved $3,000 last year.she saved $600 in the month of January.what percent of the total amount of money she save last year did dalia save in the month of
Can someone plz help me.
what is 360 in the ratio 1:8?
During the State of the Union address, the president is required to speak to A) the Supreme Court B) the vice president. C) governors in all fifty states. D) me
Why was northern Italy a natural birthplace for the Renaissance?
what is 7 divided by 906 (add remainder)
How many fl oz = 4.25 c
Give an example and description of the word Cycadophyta.