A 56-question multiple choice test has 4 possible answers for each question and a student chooses the answers to each problem at random. A student selects 16 correct answers. Find the probability of the result using the normal curve approximation to the binomial distribution.© BrainMass Inc. brainmass.com March 4, 2021, 5:37 pm ad1c9bdddf
First let us give the answer in terms of the original binomial distribution:
n is the total number of questions=56
p=probability of guessing right=1/4
This shows how to find the probability in a given situation using the normal curve approximation to the binomial distribution.