A major application of analytics in marketing is determining customer retention. Suppose that the probability of a long-distance carrier's customer leaving for another carrier from one month to the next is 0.04. What distribution models the retention of an individual customer? What is the expected value and standard deviation?

The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation