Mathematics, 11.03.2021 23:00 calmicaela12s
A university has 28,020 students. In a random sample of 285 students, 19 speak three or more languages. Predict the number of students at the university who speak three or more languages. The expected number of students at the university who speak three or more languages is ? ? ? ? ?.
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Mathematics, 22.06.2019 00:00
At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?
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A university has 28,020 students. In a random sample of 285 students, 19 speak three or more languag...
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