# SOLUTION: A test is composed of six multiple choice questions where each question has 4 choices. If the answer choices for each question are equally likely, find the probability of answering

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 Question 384749: A test is composed of six multiple choice questions where each question has 4 choices. If the answer choices for each question are equally likely, find the probability of answering 3 OR 4 questions correctlyAnswer by stanbon(57387)   (Show Source): You can put this solution on YOUR website!A test is composed of six multiple choice questions where each question has 4 choices. If the answer choices for each question are equally likely, find the probability of answering 3 OR 4 questions correctly ----------- Binomial Problem with n=6 and p = 1/4 ---- P(3 or 4) = P(3) + P(4) == 6C3*(1/4)^3*(3/4)3 + 6C4*(1/4)^4*(3/4)^2 ========================================= = 0.1318 + 0.0330 ====================== Cheers, Stan H.