Posted by **Jen** on Tuesday, July 19, 2011 at 5:31pm.

In a multiple-choice test, each question has five options. Students will get 5 points for each correct answer; lose 2 point for each incorrect answer; and receive no points for unanswered questions. A student does not know the correct answer for one question. Is it to her advantage or disadvantage to guess an answer? Show your calculations for expected value

- Math -
**Kallie**, Tuesday, July 19, 2011 at 9:19pm
I would say that it is to her disadvantage because if you guess an answer and get it wrong then you lose 2 points but if you dont put anything then you dont gain any points or lose any points. There is a chance she would most likely get it wrong if she guessed, So i would have to say not guessing is the better way to go if you arent going to lose any points for putting no answer.

This was a really confusing question so im not sure that my answer is correct but i tried answering it as best as i could... sorry :(

- Math -
**Kallie**, Tuesday, July 19, 2011 at 9:43pm
But actually now that i think of it, i think im right because she has a 75% chance its wrong. And she would lose 2 points.

## Answer this Question

## Related Questions

- Math - In a multiple-choice test, each question has five options. Students will ...
- Math-probability - In a multiple-choice test, each question has five options. ...
- math help - I need help solving this math problem, please: Problem: Angela's ...
- Math - I need help solving this math problem, please: Problem: Angela's math ...
- Math - Kosuke wrote a mathematics contest consistingof 25 multiple choice ...
- elem alg - On a certain test, the student gets 3 points for each correct answer ...
- math - What are the important variables in the problem below? A test is worth 50...
- Math (Algebra) - Gretchen and Ezia received equal scores on a test made up of ...
- math - Louann and Carla received equal scores on a test made up of multiple ...
- Algebra word problem - There are 50 questions to answer in a triva contest. Each...

More Related Questions