Tuesday

September 23, 2014

September 23, 2014

Posted by **Andrew** on Tuesday, November 20, 2012 at 6:48am.

- math -
**Reiny**, Tuesday, November 20, 2012 at 8:43amProb of 1 or 2 on a die = 2/6 = 1/3

prob of 2 or 4 = 1/3

prob of 5 or 6 = 1/3

Since these become your choice of answer

prob of selecting 1st answer = 1/3

prob of selecting 2nd answer = 1/3

.....

so the prob of choosing the correct answer in each event is simply 1/3

so to get 7 out of 10 correct

= C(10,7) (1/3)^7 (2/3)^3 = appr .01626

so at least 7

= C(10,7) (1/3)^7 (2/3)^3 + C(10,8) (1/3)^8 (2/3)^2 + .. + C(10,10) (1/3)^10

I will let you do the button pushing

**Answer this Question**

**Related Questions**

math - Beth Dahlke is taking a ten question multiple choice test for which each ...

Statistics - On a very short quiz, there is one multiple choice question with 5 ...

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

Math - a 10 question multiple choice test has 4 possible answer for each ...

statistics - A student is taking a multiple choice test where each question have...

statistics - 10. A student is taking a multiple choice test where each question ...

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

math - student is taking up midterm exam for 3 minutes left to answer 10 ...

Data Management - In a multiple choice test that contains ten questions with ...

Law and ethics in allied health - ive been trying to figure this question out ...