Refer to Exercise 4.48. A 20102011 poll conducted by Gallup (www.gallup.com/poll/148994/ Emotional-Health-Higher-Among-Older-Americans.aspx) examined the emotional health of
Question:
a. Suppose that one person is selected at random from this sample of 157,330 Americans. Find the following probabilities.
i. P(3544 age group and emotionally not welloff )
ii. P(emotionally welloff and 6574 age group)
b. Find the joint probability of the events 3544 age group and 6574 age group. Is this probability zero? Explain why or why not.
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