Mathematics, 23.01.2020 03:31 amandapill
Ateacher returns an exam with possible scores ranging from 0 to 100 . the students suspect that the majority of them performed poorly on the exam and request summary statistics. the teacher provides the mean, which was 72 , as a summary statistic. a total of 400 students took the exam. some of the students find the mean to be high, based on talking to other students. they take a random sample of 15 students, and they find that the mean equals 71.5 while the median equals 62 . based on this result, we conclude that:
Answers: 2
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In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.
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Ateacher returns an exam with possible scores ranging from 0 to 100 . the students suspect that the...
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