A bag contains 5 white balls with the numbers $1,2,3,4,5$ written on them one each, and 5 black balls with the numbers $2,3,4,5,6$ written on them one each. When 2 balls are drawn simultaneously at random from the bag, what is the probability that the 2 balls drawn are either the same color or have the same number written on them? [3 points]\\
(1) $\frac { 7 } { 15 }$\\
(2) $\frac { 8 } { 15 }$\\
(3) $\frac { 3 } { 5 }$\\
(4) $\frac { 2 } { 3 }$\\
(5) $\frac { 11 } { 15 }$