It is believed that approximately 75% of American youth now have insurance due to the health care law. Suppose this is true, and let X equal the number of American youth in a random sample of n = 15 with private health insurance. (a) How is X distributed? (b) Find the probability that X is at least 10. (c) Find the probability that X is at most 10. (d) Find the probability that X is equal to 10. (e) Give the mean, variance, and standard deviation of X.

→ CH2 Part 2 ← Section 2.3 Remember that when you looked at graphical displays of numerical data, you were interested in three characteristics: center, spread or dispersion, and shape. In this chapter we look at numerical measures that can be used to describe the same features of the data. This chapter-2 part-2 covers the following...