Thursday

April 24, 2014

April 24, 2014

Posted by **poe** on Thursday, June 17, 2010 at 6:25pm.

- Math - probability -
**Writeacher**, Thursday, June 17, 2010 at 7:08pmPlease type your

__subject__in the**School Subject**box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.

- college -
**Reiny**, Thursday, June 17, 2010 at 8:28pmR --- right

W --- wrong

so we want the case of

RRRWWW or RRRRWW and its possible arrangements

P(3 R) = C(6,3)(1/4^3(3/4)^3 = .131836

P(4 R) = C(6,4)(1/4)^4(3/4)^2 = .032959

P(3R or 4R) = the sum of those two

= .1648

**Related Questions**

satistics - A test is composed of six multiple choice questions where each ...

stat - A test is composed of six multiple choice questions where each question ...

math - A test is composed of six multiple choice questions where each question ...

Statistics - Over time, a student analyzes her ability to guess correctly after ...

Probability - Mary took a 20 question multiple-choice exam where there are 4 ...

math - Part A of your history test has 15 multiple choice questions. Each ...

math - A multiple-choice test has 10 questions. Each question has 5 choices. If ...

statistics - A multiple choice test has 3 questions and each question has 3 ...

Statistics - You have a ten question multiple choice test in your next class and...

Math - Given a multiple choice test with 4 choices for each question and 17 ...