In a book the characters are trying to determine whether the Poisson probabilistic model can be used to locations that rockets landed in a city They divided the city into 0 25 km2 regions They then counted the number of rockets that landed in each region with the results shown in the table below Complete parts a through e Number of rocket hits 5 0 1 224 Observed number of regions 0 215 2 94 H Round to four decimal places as needed 3 32 a Estimate the mean number of rocket hits in a region by computing XP x 4 8 6 0 7 1