I do not have a ton of experience working with the histograms in Tableau. I do know where there are some excellent resources available on creating histograms that I will share below.
I hope these help!
Can you mock up the viz you're attempting to build? I'd like to know more about what you are hoping to calculate, and what is already in the data. A mockup can help in understanding what you want visually with the data you've provided (which I admittedly haven't yet looked at)