(a) The fish escapes if neither net catches it: p = (0.02)(0.007) = ...... (and there's a pun in here somewhere ......).

(b) "escape 3 out of 6 attempts" doesn't make much sense unless the fish is thrown back into the water after a capture ....... So that's what I'll assume.

Let X be the random variablenumber of escapes.

X ~ Binomial(n = 6, p = ......).

Calculate Pr(X = 3).