Answer
$$\begin{aligned} \\ f(1)=0.038, \\ f(2)=0.102,\\ f(3)=0.172, \\ f(4)=0.204, \\ f(5)=0.174,\\ f(6)=0.124, \\ f(7)=0.080, & \\ f(8)=0.036, &\\ f(9)=0.028, \\ f(10)=0.022, \\ f(15)=0.020, \end{aligned}
$$
Work Step by Step
we can convert the percent to probability
$$\begin{aligned} \\ f(1)=P(X=1)=3.8\times100=0.038, \\ f(2)=0.102,\\ f(3)=0.172, \\ f(4)=0.204, \\ f(5)=0.174,\\ f(6)=0.124, \\ f(7)=0.080, & \\ f(8)=0.036, &\\ f(9)=0.028, \\ f(10)=0.022, \\ f(15)=0.020, \end{aligned}
$$
