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It is believed that the 10% of the population is left-handed. Find the probability that in a random sample of 200 people, between 15 to

It is believed that the 10% of the population is left-handed.

Find the probability that in a random sample of 200 people, between 15 to 30 people are left-handed.

If you were told that in a random sample of 70 people "no more than one person is left-handed", would you believe this claim? Show the mathematical calculations relevant to your answer.

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