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edit v Che ADMIN 210, Winter 2018, Section 2, MW 4 PM ome / study / mat Homework

ID: 3043387 • Letter: E

Question

edit v Che ADMIN 210, Winter 2018, Section 2, MW 4 PM ome / study / mat Homework: Homework Chapter 5 Lydia Stockar 2/11/189:21 PM uestion: Score: 0 of 1 pt 7 of 7 (4 5.2.17-T Hw Score: 53.57%, 7.5 of 14pts ppose that you Suppose that you and two friends go to a restaurant, which last month filed ders correctly. a. What is the probability that all three orders will be filed correcty? parts (al through Id) below What is the prol The probability is 0.7486 What is the prol What is the (Round to four decimal places as needed.) b. What is the probability that none of the three orders will be filled correctly? The probability is 0008 (Round to four decimal places as needed.) c. What is the probability that at least two of the three orders will be filled correctly? The probability is What are the m ert Ans ishfaq (Round to four decimal places as needed.) 2,466 We use p-0.72, Enter your answer in the answer box and then click Check Answer Clear All a) The parts b) The TUTORS CHAT lity is c) The required (0.72)3 = 0.8087 o 28 )

Explanation / Answer

Part c) Here we use binomial distribution

P=nCr p^r q^(n-r)

p=0.908

n=3

q=1-p =1-0.908 =0.092

P(r>=2) =P(r=2) +P(r=3)

              =3C2 (0.908)^2 (0.092)^(3-2) +3C3 (0.908)^3 (0.092)^0

              =3*0.824464*0.092 + 1*0.748613312

              =0.22755 +0.748613312

              =0.9762