Consider a sample with a mean of 40 and a standard deviation of 5. Use Chebyshev's theorem to determine the percentage of the data within each of the following ranges (to the nearest whole number). a. 20 to 60, at least 94 b. 15 to 65, at least 96 c. 32 to 48, at least d. 26 to 54, at least e. 24 to 50, at least 90Consider the following data. Period Rate of Return (%) - 6.0 2 - 8.0 - 4.2 4 1.8 5.4 What is the mean growth rate over these five periods (to 2 decimals)? Enter negative value as negative figure. %