Suppose that an experiment is repeated four times. A certain event has probability 1/10 in a single repetition of the experiment. What is the probability that it never occurs?

6,561/10,000
3/5
999/10,000

Question

Suppose that an experiment is repeated four times. A certain event has probability 1/10 in a single repetition of the experiment. What is the probability that it never occurs? 



6,561/10,000
3/5
999/10,000

anonymous · Answer

All we do is (9/10)^4. We take the probability that it won't occure (9/10) and multiply it by how many times the experiment is repeated (4). With that, we get 6,561/10,000, which is the first answer.

anonymous · Answer

thank you:)

anonymous · Answer

no problem :)

anonymous · Answer

Lol had to think about that one for a while.

anonymous · Answer

you got this one ??  Two six-sided die are tossed. What is the probability that they both come up a one?



1/6
1/12
1/36

anonymous · Answer

Lol I meant multiply 1/6 with 1/6.

anonymous · Answer

The probablity is (1/6)^2

anonymous · Answer

And when you do that you get 1/36.

anonymous · Answer

haha sorry it took so long for me to thank you i was eating. thank you :)

anonymous · Answer

Oh no problem :) Lol it's okay. if you have any other questions, I"ll try my best to help you out if I can. :)