3 years ago

A true false test has 8 questions. What is the probability of guessing the correct answers to all of the questions?

1 answer:

7 0

Each individual question has a prob of 1/2 of being correct so its
(1/2)(1/2) .... (1/2) --- (8 times)
= (1/2)^8
= 1/256

so the answer is 1/256

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