Answer
$\frac{3}{29}$
Work Step by Step
If A and B are dependent events, then P(A and B) = P(A) *P(B given that A has occurred).
E: two caramel-filled chocolates in a row
A: caramel-filled chocolate
B: caramel-filled chocolates given that one is selected
P(A) = $\frac{10}{30}$
Once one caramel chocolate is selected, there is one fewer caramel filled chocolate and one fewer chocolate overall. Thus, there are only 29 chocolates and only 9 caramel filled chocolates once one caramel chocolate is selected.
P(B) =$\frac{9}{29}$
P(E) = $\frac{10}{30}$ .$\frac{9}{29}$
P(E)=$\frac{3}{29}$