$**$PLEASE USE EXCEL IN YOUR SOLUTION$**$

In this problem, you will use an online PSD plot generator such as the one provided by

Granulometrics to analyze particle size distribution data. Consider both particle size data

provided in previous question.

Note: On top left of the page, click on "Create New Particle Size Distribution Plot" where you

can upload your screening data. Be careful to use U$.$S$.$ Sieve Sizes and enter Raw Screen

Weight.

a$)$ Generate particle size distribution $($PSD$)$ plots based on the data provided. Screenshot

the plot and include in your solutions.

b$)$ Use the online tool to fit all three available PSD models, namely Gaudin$-$Schuhmann,

Rosin$-$Rammler, and Bond's $\sqrt[\phantom{2}]{2}$ models, and record obtained plots and equations.

c$)$ Determine and report $10\%,50\%,80\%$ and $90\%$ passing sizes obtained using all four

available methods, namely Nearest Neighbors, Gaudin$-$Schuhmann, Rosin$-$Rammler,

and Bond's $\sqrt[\phantom{2}]{2}$ models and discuss potential reasons why the results vary between

applied methods.