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Dirk is taking a survey of 7 people who walk out of Starbucks during lunch. Based on the national average, 72% of people pref

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TOPIC:Binomial distribution.

> We need = P ( x is exactly three). =P(x - 2). - (1) (0-42)9 (0.28) jour decimals) in (Ans) 2.7 we need, - P ( x is no more3.) We need P (x is at least 3. = P(x+3). = 1-P(x+2). [ Lawak complementation. 21- p(x < 2). = 1-0.0213. (By part ) 2 10. 978

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