Assume that the waiting time x for an elevator is uniformly distributed between zero and six minutes. 1. Write the formula for the probability curve of x. 2. Find P(2.5 s x $ 4). 3. Find P(3 S x S 6). 4. Find P({3.4 s x $ 8.3}) 5. Find P(4.5 s x S 12}). 6. Find the Standard Deviation