How to Calculate the Internal Rate of Return on an Annuity or Pension
What is the rate of return on a lifetime fixed annuity? The answer depends on the amount of money you must invest upfront, the amount of income you will receive annually, and how long you will live….
Good, Clean Fun with Numbers: Benford’s Law
One cannot have too many numbers, really. Imagine you have a data set that includes many numbers, like U.S. city populations, or the odometer readings for all the cars in an area. Look at only the first digit of each number in your set of populations or mileage, and count each time 1 through 9 occurred. Each number should occur about the same number of times. You would have about the same number of 1’s as you would of 2’s or 3’s, right? The correct answer is somewhat more fun.