1.5, 2.33, 3.25, 4, 3.9, 2.8, 2.2, 1.89, 3.45, 3.98, 2.43, 2.54, 3.76, 3.5, 2.5, 2.2, 1.98, 2.1, 2.8, 1.68, 3.45, 3.75, 3.9, 4 find class width , number of class, range,

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.