1. Suppose X is a random variable and you want to calculate V ( X ) and V ( X + 16 ) . Will these variances be the same or different? Explain why in 1-4 sentences. 2. Tony's ink cartridge refill center will refill a certain number of ink cartridges per day. Usually a day is either busy, or it is not. The probability distribution of X (the probability of refilling a certain number of cartridges on a given day) is (a) Find the CDF, F ( x ) . Write your answer as a piecewise function. (b) Find P ( X 25 X > 4 ) . .