The GMC Casino has a new game. In order to play the game, the gambler is to pay $2. There is a 45% probability of losing $4, a 25% probability of breaking even, a 20% probability of winning $3, and a 10% probability of winning $10. Find E(X) = mu and find the population standard deviation.

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.