A four-digit code can consist of the digits 0 ~ 9 except that it does not contain the digits 1, 2, and 4 at all. If repeated digits are allowed, what is the probability that it has at least one even digit?  Choose the correct choice from the following choices:	A) 145/401	B) 845/901	C) 1145/1401	D) 2145/2401	E) 3145/3401
P(no even digits) = 4/7*4/7*4/7*4/7 = 256/2401   P(at least one even digit) = 1 - 256/2401 = 2145/2401   The answer is 2145/2401.
<result>D</result>
A four-digit code can consist of the digits 0 ~ 9 except that it does not contain the digits 1, 2, and 4 at all. If repeated digits are allowed, what is the probability that it has at least one even digit?