You have a 5-question multiple-choice test. Each question has four choices. You don’t know any of the answers?
You have a 5-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 three out of five questions correctly? Type your answer below using complete sentences
(this is for a pre algebra math exam, and need help badly. i don't know the answer.)
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3C2 ( 1 / 4)^3 ( 3 / 4)^2
= 3 * 9 / 4^5
= 27 / 1024
... Ugh... I hated pre algebra.... and algebra... and geometry ... T_T horrible memories.