antariusjones8862 antariusjones8862

03-09-2018
Mathematics

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Question 2.what is the probability that between 80 and 115 complaints are received in one week? use a n(110,20) model to approximate the distribution of weekly complaints.

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Аноним Аноним

03-09-2018

Calculate standard Z values for the given data:-

z = (80 - 110) / 20 = - 3/2 = -1.5

and z = (115 - 110) / 20 = 0.25

so we need Prob ( -1.5 < z < 0.25)

Using standard tables this comes to 0.5319 Answer

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