SOLUTION: A five-question multiple choice quiz has four choices for each answer. Find the experimental probability of getting exactly three correct answers if you guess the answers at random

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Question 857674: A five-question multiple choice quiz has four choices for each answer. Find the experimental probability of getting exactly three correct answers if you guess the answers at random. Define a simulation using the random number table on page 43. Use your stimulation to find the experimental probability.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

p = .25, n = 5

TI syntax for P(x-value) is binompdf(n, p, x-value).

P(x = 3) = binompdf(5, .25, 3) = .0879

0r

Using P+%28x%29=+highlight_green%28nCx%29%28p%5Ex%29%28q%29%5E%28n-x%29+ 

P(x = 3) = highlight_green%285C3%29%28.25%5Ex%29%28.75%29%5E%28n-x%29+ 

P(x = 3) = highlight_green%2810%29%28.25%5E3%29%28.75%29%5E%282%29=+.0879+