# Math

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

A. 1/10
B. 1/16
C. 1/64
D. 1/256

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

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2. Yes I think so too

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3. dose anyone have all the answers?

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4. 1. A
2. C
3. B
4. B
5. C
6. B
7. B
8. C
9. D
10. B
11. C
12. C
13. D
14. A
15. A
16. C
17. A
18. C
i got 12/18 searching the answers one by one.
these should get you 100%

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6. i agree

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