5.16 Lane and Osborn (1973) present the following data for the mean number of days with more than 0.10 inches of precipitation at Tombstone, Arizona. If the occurrence of more than 0.10 inches of rain in any month can be considered as an independent Poisson process, what is the probability of fewer than 30 days with more than 0.10 inches of rain in one year at Tombstone? Month No. of Days Month No. of Days Jan. 2 July 7 Feb. 2 Aug. 7 Mar. 2 Sept. Apr. Oct. N N W May 0 Nov. June 2 Dec. 2 Total 32