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Determine the population and the sample in the statements that follow.
a) In a survey of 2000 U.S. high school seniors less than one in five are current marijuana users.
(b) In a sample of 10 bags of Doug’s Super Green grass seed only 70% of the seeds were actually grass
seeds.
(c) The Gallup Organization contacts 1500 men over 50 years of age and live in the United States and
asks them whether or not they smoke.