Find the expectation e(x) and variance var(x) for the task suppose you choose a real number x from the interval [2, 10] with a density function of the form f(x) = c/x , where c is a constant

(c) a vine called the mile-a-minute weed is known for growing at a very fast rate. it can grow up to 0.5 ft per day. how fast in inches per hour can the mile-a-minute weed grow up to? show your work using the correct conversion factors.