Question 14625
The probability of getting one answer right is 1/2
The probability of getting two right is 1/2 *1/2 = 1/2^2=1/4
You multiply because the events are independent; what you do
on one problem does not effect what you do on the next.
The prob of get all 10 right is (1/2)^10 = 1/1024
--------
Cheers,
Stan H.