In 2004 newsmonth reported that 60 of young children have, Ask an Expert

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In 2004, Newsmonth reported that 60% of young children have blood lead levels that could impair their neurological development. Assuming that a class in a school is a random sample from the population of all children at risk, the probability that at least 5 children out of 10 in a sample taken from a school may have a blood level that may impair development is:

about 0.786
about 0.834
about 0.166
about 0.812

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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