Given a quadratic function f(x) = 1 2xtax bt x + c, where a is general symmetric positive definite, we will make one steepest gradient descent step from x₀ to minimize f. suppose we choose x₀ such that x₀ x is an eigen vector of a, associated with eigenvalue. what is the error e₁ after the rst step?

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%