The following data represents number of hours 8 students spent online during the weekend and the scores of each student who took a test the following Monday. Hours, x 1 2 3 3 5 6 7 10 Score, y 94 88 81 79 75 72 69 53 Find the correlation coefficient r. Round to 3 decimal places.

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.