The following data set includes a random sample of the ages 5 U.S. Presidents at their inauguration. Determine the sample variance, s 2 . Round your answer to the nearest tenth if necessary. Ages of Five U.S. Presidents at Inauguration President Age Martin Van Buren 54 John Tyler 51 David D. Eisenhower 62 Jimmy Carter 52 Joe Biden 78 Provide your answer below: The sample variance, $s^2$ , is years