SOLUTION: What are the chances that a student can get a grade of a C, B or A when they guess on a multiple choice test?
Algebra.Com
Question 875139: What are the chances that a student can get a grade of a C, B or A when they guess on a multiple choice test?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Let's say 4 choices: p(correct) = .25 , n = 100
P(x ≥ 70) = 1 - binomcdf(100, .25, 69)= 1 - 1 = 0, Basically 0% chance of a C
Obviously same holds for B or A
RELATED QUESTIONS
If you guess on three multiple choice questions where A,B,C,D are the only options, what... (answered by flame8855)
A student takes a 10 question multiple choice test (each with four options, A-D) without... (answered by stanbon)
A test consists of 10 multiple choice questions, each with five possible answers, one of... (answered by math_tutor2020)
A test consists of 10 multiple choice questions, each with 5 possible answers, one of... (answered by stanbon)
The probability that a student guesses the correct answer to a four choice multiple... (answered by ewatrrr)
If you take a 30 question, multiple choice test, where each question has answer choices... (answered by stanbon)
4. Elizabeth had a bad night and didn’t study for her English test. She is so stressed... (answered by stanbon)
John is taking an exam, but hasn’t studied or gone to class all term. He figures on... (answered by richwmiller,stanbon)
A student has a 10-question multiple choice test with five answers for each question. In... (answered by richwmiller,jsmallt9)