SOLUTION: A student is taking a multiple-choice exam with 16 questions. Each question has five alternatives. If the student guesses on 12 of the questions, what is the probability she will g
Algebra.Com
Question 918181: A student is taking a multiple-choice exam with 16 questions. Each question has five alternatives. If the student guesses on 12 of the questions, what is the probability she will guess at least 8 [of those questions] correct? Assume all of the alternatives are equally likely for each question on which the student guesses.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
p(correct) = .2 , n = 16
P( x ≥ 8) = 1 - binomcdf(16, .2, 7)
RELATED QUESTIONS
A student is taking a multiple choice exam with 16 questions. Each question has five... (answered by edjones)
Suppose you have a mutliple choice exam with 16 multiple choice questions. Each question... (answered by stanbon)
A student is taking a multiple choice test with 3 questions, each of which has five... (answered by ikleyn)
If a student randomly guesses at 15 multiple-choice questions, find the probability that... (answered by Boreal)
An exam consists of 20 multiple choice questions, each with 5 answer choices. If a... (answered by ikleyn)
Take another guess: A student takes a multiple-choice test that has 7 questions. Each... (answered by Alan3354,ikleyn)
There are 5 questions on a multiple choice exam, each with five possible answers. If a... (answered by Fombitz)
A multiple choice test has 30 questions. Each question has five possible answers, of... (answered by stanbon)
Please help. A multiple choice test has 20 questions. Each question has five possible... (answered by ikleyn,solver91311)