Mathematics, 04.08.2020 21:01, juanaaraujo1104
Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters can ask questions about forthcoming texts, request examination copies of texts, and place orders. Currently, two extension lines are used, with two representatives handling the telephone inquiries. Calls occurring when both extension lines are being used receive a busy signal; no waiting is allowed. Each representative can accommodate an average of 12 calls per hour. The arrival rate is 20 calls per hour.(a)How many extension lines should be used if the company wants to handle 90% of the calls immediately?(b)What is the probability that a call will receive a busy signal if your recommendation in part (a) is used?(c)What percentage of calls receive a busy signal for the current telephone system with two extension lines?
Answers: 1
Mathematics, 21.06.2019 13:30, alexthebest3976
Given: △abc, ab=15, bd=9 ad ⊥ bc , m∠c=30°. find: the perimeter of the triangle.
Answers: 1
Mathematics, 21.06.2019 21:30, swordnewsnetwork
Which of the following disjunctions is true? 4 + 4 = 16 or 6 - 5 = 11 4 · 3 = 7 or 3 - 2 = 5 8 - 5 = 13 or 7 · 2 = 12 7 - 4 = 11 or 6 + 3 = 9
Answers: 1
Mathematics, 21.06.2019 22:50, ciaotaylor
1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?
Answers: 2
Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone numbe...
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