What should be done so that the expression will have a value of 10? 12 - 2 + 22 ÷ 8 Add parentheses around 2 + 2. Add parentheses around 12 - 2. Add parentheses around 2 2 ÷ 8. Nothing needs to be done.

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.