Suppose the statistics department at a large midwestern university has offered the same course in biostatistics for manysemesters. Let U be a discrete random variable with values cqual to the number of undergraduate students who register eachsemester. The mean of U is pu = 160 undergraduate students and the standard deviation is oU = 16 undergraduatestudents.Let G be a discrete random variable with values cqual to the number of graduate students who register each semester. Themean of G is µG = 40 graduate students and the standard deviation is og = 12 graduate students.Compute the mean, HU+G, of the total number of undergraduate and graduate students registered. Give your answer as awhole number.studentsHU+GCompute the standard deviation, ou+G, of the total number of undergraduate and graduate students registered. Assume thevariables U and G are uncorrelated, and report your answer as a whole number.studentsOU+G =27%

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Answered: Suppose the statistics department at a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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For a standardized psychology examination intended for psychology majors, the historical data show that scores have a mean of 515 and a standard deviation of 175. The grading process of this year's exam has just begun. The average score of the 40 exams graded so far is 518. What is the probability that a sample of 40 exams will have a mean score of 518 or more if the exam scores follow the same distribution as in the past? Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places. Sub Continue
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