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A student takes a calculus midterm and a history midterm. The mean and standard deviation on the calculus midterm are 58 and 15 points while they are 63 and 35 on the history midterm. Suppose she gets 78 on the calculus midterm and 78 in history.
What score in history is comparable to her calculus score?
What score in calculus is comparable to her history score?
In which course is she doing better? Enter 1 for calculus, 2 for history.
A sample of 10 electronic tubes produced by a company showed a mean lifetime of 1200 hours and a standard deviation of 100 hours. estimate the mean and the standard deviation of the population of all such tubes produced by the company?
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for each of the following variables determine whether the variable is categorical or numerical. if the variable is
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an exam consists of 44 multiple-choice questions. each question has a choice of five answers only one of which is
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