From a sample with n = 35. the mean duration of a geyser's eruptions is 3.?5 minutes and the standard deviation is 9.92 minutes. Using Chehyehe-Is Theorem. determine at least how man}.t of the eruptions lasted between 1.91 and 5.59 minutes. E At least D of the eruptions lasted between 1.91 and 5.59 minutes. (Simplify your answer}