following data represent erime rates per 1000 population for a random sample of 45 Denver neighborhoods. (a) Use a caiculator with mean and sample standard deviabon lieys to-find the samole mean x and sample standard devlatian s- (Reund your ant strn to four becithal plisces. arimes per 1000 pecipie arenes per 1000 pedeple crimes per 1000 pespie dumes per 1000 sospin.