a) Construct a stem-and-leaf display using the ten's digit as the stem unit. (only nal plot is needed) b) Construct a stem-and-leaf display using the ten's digit as the leaf and a 5 leaf category per stern. (only nal plot is needed) c) State the increment in part b) d) Based on your plot in part b). does your distribution seem to be skewed to the right, left or symmetric? e) What proportion of weights are between 200 and 300 lbs? Exercise 3 (8 marks) Suppose that in one area in California, 40% of all homeowners are insured against earthquake damage. Four homeowners are to be selected at random; let x denote the number among the four who have earthquake insurance. a) Find the probability distribution of x. [Hint Let 5 denote a homeowner who has insurance and F one who does not. Then one possible outcome is SFSS, with probability (.4)(.6)(.4)(.4) and associated x value 3. There are 15 other outcomes] b) What is the most likely value for x? c) What is the probability that at least two of the four selected have earthquake insurance