1. In a certain community, 10% of the population is Jewish. A study shows that of 7...

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1. In a certain community, 10% of the population is Jewish. A study shows that of 7 social service agencies, 4 have board presidents who are Jewish. Find the probability that this could happen by chance.
2. Suppose the probability of suicide among a certain age group is 0.003. If a randomly selected group of 100 Native Americans within this age group had no suicides, find the probability of this occurring by chance.
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