Ok fourth attempt at getting answers for this question I've been struggling with. Ideally I'd like the entire question answered but at the very least help me find the f(d) and help show the log-normal distribution on log-probability paper. I could probably finish the problem from there. But as I have specified exactly what I need answered I will not accept the wrong solution.

As I stated this is my fourth time posting this exact question, I have received the following from two of my attempts and it is from a different question that was asked and it completely incorrect form what I am asking. I have also included the most recent ridiculous and completely wrong answer I received from the third attempt. So I plead if you do not know how to help solve this problem do not answer it. Please leave it to someone who does know how to help me.

Answer is -1

Given data

g=9.81 m/s²

Density=7.8 gm/cm³

DO NOT post either of the above answers I assure you I have already received them and they are 100% wrong and don't even help find a solution much less actually solve the problem. I will give an upvote if it is helpful but if I encounter even more ridiculous answers that don't even address the problem, I will not be happy.

Consider the particle size distribution in the following table. Calculate the F(dp) for each size ranges from the concentration data. Size Range in Equivalent Aerodynamic Diameter Concentration F(dp) (ug/m3) (um)