In 2007, the population of north america was approximately 5.15 x 10^8 people and the population of south america was approximately 3.04 x 10^8 people. what is the combined population of north and south america for this year? a) 8.19 x 10^16 people b) 8.19 x 10^9 people c) 8.19 x 10^8 people d) 8.19 x 10^64 people

A. the probability that a product is defective is 0.1. what is the probability that there will be 1 or less defective products out of the next 8 produced products b.the expected number of imperfections in the coating nylon for parachutes is 6 per 100 yards. what is the probability of finding 12 or fewer imperfections in 260 yards c.in a lot of 54 products there are 9 defective products. calculate the probability that not more than 1 is defective from a random sample of 17 products.