Lunch break: In a recent survey of  654  working Americans ages  25 - 34 , the average weekly amount spent on lunch as  $44.36  with standard deviation  $2.74 . The weekly amounts are approximately bell-shaped. Part: 0 / 3 0 of 3 Parts Complete   Part 1 of 3     (a) Estimate the percentage of amounts that were less than  $38.88 . Round the answer to one decimal place.

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