Gradebook The histogram shows the distribution of hurricanes that have hit a country from 1851 through 2015, where 1 is Hurricanes the weakest level and 5 is the strongest level. 0.5 0.418 0.4- StatCrunch (a) Find the mean, variance, and standard deviation of the probability distribution. 0.3- 0.251 0.214 (b) Interpret the results. 0.2- 0.105 6 01 0.012 e Text 2 3 Category Chapter Contents Accessible Resources (a) The mean is Skills for Success (Type an integer or a decimal. Do not round.) The variance is Tools for Success (Round to two decimal places as needed.) Multimedia Library The standard deviation is (Round to two decimal places as needed.) Purchase Options (b) Interpret the results. Select all that apply. Discussions A. The typical hurricane deviates from the mean by about 2 category levels. B. The typical hurricane deviates from the mean by about 1 category level. Course Tools C. The average hurricane is approximately category 2. D. The average hurricane is approximately category 1. Submit quiz 8:21 PM