Let x and y be independent exponential random variables with respective parameters 2 and 3.
a). find the cdf and density of z = x/y.
b). compute p(x < y ).
c). find the cdf and density of w = min{x, y }.

Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30