S = { 1,5,3,7}
T = { 4,5,6,7 }
what is the probability that x chosen from S and y chosen from T will result x*y = even Select the correct option:
A) 1/3
B) 4/5
C) 2/3
D) 1/2
E) 1/6
p: the probability that x*y is even, then p=1-p(x*y is odd)   p(x*y odd)=p(x odd)*p(y odd)=4/4*2/4=2/4   And p=1-2/4=1/2   Option: 1/2
<result>D</result>
S = { 1,5,3,7}
T = { 4,5,6,7 }
what is the probability that x chosen from S and y chosen from T will result x*y = even