=+a) If we select a person at random, what’s the probability we choose a person between 18 and 24 years old who is spending more at coffeehouses?

Communications influence on car purchase, by household income, July 2011 Income Communication (e.g., hands-free calling): *$50K $50K–99.9K $100K+ Total Very Much 30 57 41 128 Somewhat 26 39 62 127 Not At All 23 39 35 97 Total 79 135 138 352 Source: Mintel