Does crime pay The FBI Standard Survey of Crimes showed that for about 80 of all property crimes burglary larceny car theft etc the criminals are never found and the case is never solvedt Suppose a neighborhood district in a large city suffers repeated property crimes not always perpetrated by the same criminals The police are investigating ten property crime cases in this district LUSE SALT a What is the probability that none of the crimes will ever be solved Round your answer to three decimal places 0 107 b What is the probability that at least one crime will be solved Round your answer to three decimal places 0 893 c What is the expected number of crimes that will be solved 2 crimes What is the standard deviation Round your answer to two decimal places x crimes d What is the smallest number of property crimes in that the police must investigate before they can be at least 90 sure of solving one or more cases crimor