Question Probability of getting at least one wrong on an 8-question, 5-answer multiple-choice test.
$P(\text{at least one wrong}) = 1 - P(\text{all correct}) = 1 - \left(\frac{1}{5}\right)^8$

Studdy Solution
Calculate the probability of getting at least one question wrong.
$$(\text{at least one wrong}) =1 -0.00032768 =0.99967232$$The probability of getting at least one question wrong on an8 question multiple-choice test, where each question has5 answers, is approximately0.99967232 or99.967232%.