Mathematics, 16.02.2021 01:40 21marmong
2. Power companies manage tree growth near their lines to avoid power failures and wildfires due to falling limbs in storms. Applying a chemical to slow the growth of the trees is cheaper than trimming, but the chemical kills some of the trees. Suppose that one such chemical is known to kill 20% of all sycamore trees. The power company tests the chemical on 260 sycamores. Consider these an SRS from the population of all sycamore trees. a.) Describe the sampling distribution of sample proportions of sycamore trees killed in random samples of 260 trees. b.) What is the probability of obtaining a sample of 260 sycamores where at least 60 trees are killed
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Mathematics, 21.06.2019 14:30
anyone? find the second, fifth, and ninth terms of a sequence where the first term is 65 and the common difference is -7. 72, 93, 121 72, 79, 86 58, 37, 9 58, 51, 44
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Cole says the distance between points (-5,0) and (0,-5)is 5 units. is he correct? explain why or why not.
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Given the net of the rectangular prism, what is its surface area?
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Write 5 in the form of a/b using integers to show it as a rational number
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