If you sample 100 people and 20 turn out to be over 65, Ask an Expert

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People in a large population average 60 inches tall. You will take a random sample and will be given a dollar for each person in your sample who is over 65 inches tall. For ex if you sample 100 people and 20 turn out to be over 65 inches tall, you get $20. Which is better: a sample of size 100 or a sample of size of 1,000? Choose one and describe. Does the law of average relate to the answer you give?

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