At a local University 54.3% of incoming first-year students have computers. If 3 students are selected at random, find the following probability. A) At least one has a computer
B) None have computers

Question

At a local University 54.3% of incoming first-year students have computers. If 3 students are selected at random, find the following probability. A) At least one has a computer 
B) None have computers

anonymous · Answer

.543^3=a
.457^3=b

anonymous · Answer

that's the wrong answer for A), thanks for B, helps alot. the answer for A is .9046, don't know how i got that? any suggestions

anonymous · Answer

oh only one has to have it. my bad

anonymous · Answer

what does that mean, sorry, how would I get that .9046?

anonymous · Answer

should be 1.0 - the answer for b.  only one has to have one, but they can all have one. i ran it as if they all had to have one.

anonymous · Answer

thanks a ton!

anonymous · Answer

welcome