SOLUTION: in a quiz, a contestant is asked 10 questions to which he should answer true or false. he should answer atleast 8 questions correctly to go to the next level of the quiz.if he answ

Algebra ->  Probability-and-statistics -> SOLUTION: in a quiz, a contestant is asked 10 questions to which he should answer true or false. he should answer atleast 8 questions correctly to go to the next level of the quiz.if he answ      Log On


   

Question 870632: in a quiz, a contestant is asked 10 questions to which he should answer true or false. he should answer atleast 8 questions correctly to go to the next level of the quiz.if he answers all the questions, what is the probability that he doesnot go to the next level?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
p(correct) = .5, n = 10
P(x ≤ 7) = binomcdf(10, .5, 7)= .9453 0r 95.43%