A client wishes to do a sample size calculation for a logist…

A client wishes to do a sample size calculation for a logistic model that will predict getting a promotion based on four rankings X1, X2, X3, and X4 (all of which are measured from 0 to 100).     X1:             X2: X3:              X4: The client has drawn the four probability plots below to explain their opinion on the effect of getting a promotion based on each variable.   Match the plot to the appropriate equation.

The data set http://people.tamu.edu/~scottcrawford/data/pers…

The data set http://people.tamu.edu/~scottcrawford/data/personalitytest.txt has results from 200 people that took a personality test that ranks (on a scale from 0 to 100) whether people are extrovert, confident, friendly, curious, and organized.  The goal is to do a cluster analysis to see if you can group people with similar personality characteristics.  Create an elbow plot of the number of clusters based on the Within Sum of Squares.