Uri asked six friends how many different foreign countries theyíd been to. he recorded 0, 1, 1, 2, 5, and 9 countries visited.

what is the mean absolute deviation of the number of countries visited? round to the nearest tenth, if needed.

a.

0 countries

b.

2.7 countries

c.

2.9 countries

d.

3 countries

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.