**3. Incorrect. The answer is false, not true.**

We have that the event R_{Y}
is {y _{}R_{Y} | 12 ≤ y ≤ 16}. The equivalent
event in R_{X} is calculated as follows: 12 ≤ y ≤ 16 if and
only if 12 ≤ 2x + 10 ≤ 16. Then, we have
that 1 ≤ x ≤ 3. The function *f(x)
*is defined in the set {x _{}R_{X} | 1 ≤ x ≤ 3}. Therefore, P[12 ≤ Y ≤ 16] = P[1 ≤ X ≤ 3]:

The expected number of oil spills in 5 years is: