The chance of getting an item right = 1/4. The chance of getting it wrong = 3/4.
The probability of getting 2 right and one wrong is found by multiplying the individual probabilities.
you take a three-question multiple-choice test.each question has four choices.you don't know any of the answers. what is the experimental probability that you will guess exactly two out of three correctly
please help me i am confused
1 answer
1 answer