Wednesday

April 23, 2014

April 23, 2014

Posted by **Matt Borchelt** on Tuesday, December 13, 2011 at 9:50pm.

Find probability of this event:

(multiple choice)

A) .118

B) .995

C) .068

D) .571

- Math -
**bobpursley**, Tuesday, December 13, 2011 at 10:00pmhe got 6 right, 4 wrong. The question has no answer. Did he randomly guess, or did he know the answers to only six?

If he knew the answers to six, the probability is 1 that he gets those six.

If he knows 5, the prob is 1 he gets those right, plus pr =4(1/4)(3/4) he gets one more or a pr of .75 he gets six right knowing 5, guessing on the last four.

Well, we need to know how many he knew, I think.

**Related Questions**

math - What is the difference between the number of possible answers on a five ...

Math - What is the difference between the number of possible answers on a five ...

Math - What is the difference between the number of possible answers on a five ...

math - a multiple choice test has 8 questions with 4 possible answers for each ...

statistics - A test has 1 true false question and 2 multiple choice questions(A...

MATH Prob. - Find the probability of correctly answering the first 4 questions ...

Math - A multiple-choice test has four possible answers for each question. If a ...

MATH Prob. - Find the probability of correctly answering the first 4 questions ...

English for john browm - Let me give you something on "multiple-choice" items ...

PROBABILITY MATH - Find the probability of correctly answering the first 4 ...