Find the probability of correctly answering the first 4 questions on a multiple choice test if random guesses are made and each question has 3 possible answers.
A) 4/3 B) 1/81 C)1/64 D)3/4
I automatically think D.
2 answers
1/3 * 1/3 * 1/3 * 1/3 = 1/81
thanks