Posted by **laura** on Sunday, June 13, 2010 at 6:35pm.

A test is composed of six multiple choice questions where each question has 4 choices. If the answer choices for each question are equally likely, find the probability of answering more than 4 questions correctly

- stat -
**unknown**, Sunday, June 13, 2010 at 7:17pm
Use the binomial distribution, with parameters 6 and 1/4. Add up the probabilities for x=5 and x=6.

- stat -
**PsyDAG**, Monday, June 14, 2010 at 2:00pm
The probability of answering 5/6 = (1/4)^5 * 3/4

The probability of answering all 6 = (1/4)^6

Either-or probabilities are found by adding the separate probabilities.

## Answer this Question

## Related Questions

- satistics - A test is composed of six multiple choice questions where each ...
- college - A test is composed of six multiple choice questions where each ...
- math - A test is composed of six multiple choice questions where each question ...
- statistics - A test consists of 12 multiple choice questions with 5 choices for...
- math - Part A of your history test has 15 multiple choice questions. Each ...
- Math - Given a multiple choice test with 4 choices for each question and 17 ...
- Probability - Mary took a 20 question multiple-choice exam where there are 4 ...
- math - A multiple-choice test has 10 questions. Each question has 5 choices. If ...
- statistic and probability - There are two independent multiple-choice quizzes ...
- statistics - A multiple choice test has 3 questions and each question has 3 ...