Question 568593
 On a 10 question multiple-choice test, where each question has 2 answers, what would be the probability of getting at least one question wrong? 
------------------------
P(at least one) = 1 - P(none wrong) = 1 - (1/2)^10 = 1 - 1/1024
----
= 1023/1024
==============
Cheers,
Stan H.
==============