Consider a sample with a mean of 30 and a standard deviation of 5. Use Chebyshev's theorem to determine the minimum percentage of the data within each of the following ranges. (Round your answers to the nearest integer.) (a) 20 to 40 75 % (b) 15 to 45 89 % (c) 23 to 37 31 X % (d) 19 to 41 85 X % (e) 12 to 48 92 %