Yes, essentially that is what I was trying to write in my first sentence under "Attempt at a solution" but I don't know how to write summation notation on this site haha. My question really was how to calculate P(Ai).
I thought it might be something divided by 40choose10, but am unsure how to...
Homework Statement
There are 20 couples who attend a party where there is a raffle. 10 Winners are chosen in the raffle. What is the expected number of couples for which both members win.
Homework Equations
Assuming method of indicators is used to solve the problem, Ai={members of ith...
Homework Statement
There are a set number of marbles in a bag; the marbles consist of two colors. We are given the mean number of marbles of color 1 in the bag, as well as color 1's standard deviation. We are then asked to find the mean and standard deviation of color 2.Homework Equations
How...