Question: An author receives from a publisher a contract, according to which she is paid a fixed sum of $10,000, plus $1.50 for each copy of her book sold. Her uncertainty about total sales of the book can be represented by a random variable with mean 30,000 and standard deviation 8,000. Find the mean and standard deviation of the total payments she will receive. If another publisher offers no fixed amount but increases the variable to $2 per book, how would that change the expectation and standard deviation of the payments? Which contract would you choose? (Discuss)