Intro to Stat_Part_14

# Intro to Stat_Part_14 - 56 CHAPTER 3 PROBABILITY TOPICS The...

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Unformatted text preview: 56 CHAPTER 3. PROBABILITY TOPICS The next two questions refer to the following: The percent of licensed U.S. drivers (from a recent year) that are female is 48.60. Of the females, 5.03% are age 19 and under; 81.36% are age 20 - 64; 13.61% are age 65 or over. Of the licensed U.S. male drivers, 5.04% are age 19 and under; 81.43% are age 20 - 64; 13.53% are age 65 or over. (Source: Federal Highway Administration, U.S. Dept. of Transportation) Exercise 3.24 Complete the following: a. Construct a table or a tree diagram of the situation. b. P(driver is female) = c. P(driver is age 65 or over | driver is female) = d. P(driver is age 65 or over AND female) = e. In words, explain the difference between the probabilities in part (c) and part (d). f. P(driver is age 65 or over) = g. Are being age 65 or over and being female mutually exclusive events? How do you know h. P(driver is "male" OR "age 19 or under") = Exercise 3.25 (Solution on p. 64.) Suppose that 10,000 U.S. licensed drivers are randomly selected. a. How many would you expect to be male?...
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Intro to Stat_Part_14 - 56 CHAPTER 3 PROBABILITY TOPICS The...

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