An example of my problem is:
What is the gender distribution (%females and %males)?
And the "tenure" distribution by gender?
What is the mean?
I need to know how to find these answers mathematically and understanding it.
Understanding empirical, conditional, and classical probability. I have had Alegebra about 30 years ago in high school and do not remember how to solve this type of problem.
And also, finding the standard deviation.
Your help will be appreciated.