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3- The CO2 concentration of the flue gas air has been registered every 10th second. The last five registrations are (in % ): 73, 78, 76, 79, 77. The desired value is 75%. Based on 100 registrations we obtain the following estimates of the first four ACF for deviation from 75%. r(0) = 2.30, r(1) = 1.61, r(2) = 1.13, r(3) = 0.79.The suggested model for this registration is a) MA(1) b) AR(1) c) MA(2) d) AR(2) e) ARMA(1.1)

3- The CO2 concentration of the flue gas air has been registered every 10th second. The last five registrations are (in % ): 73, 78, 76, 79, 77. The desired value is 75%. Based on 100 registrations we obtain the following estimates of the first four ACF for deviation from 75%. r(0) = 2.30, r(1) = 1.61, r(2) = 1.13, r(3) = 0.79.The suggested model for this registration is a) MA(1) b) AR(1) c) MA(2) d) AR(2) e) ARMA(1.1)

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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3- The CO2 concentration of the flue gas air has been registered every 10th second. The last five registrations are (in % ): 73, 78, 76, 79, 77. The desired value is 75%. Based on 100 registrations we obtain the following estimates of the first four ACF for deviation from 75%. r(0) = 2.30, r(1) = 1.61, r(2) = 1.13, r(3) = 0.79.The suggested model for this registration is a) MA(1) b) AR(1) c) MA(2) d) AR(2) e) ARMA(1.1)
Transcribed Image Text:3- The CO2 concentration of the flue gas air has been registered every 10th second. The last five registrations are (in % ): 73, 78, 76, 79, 77. The desired value is 75%. Based on 100 registrations we obtain the following estimates of the first four ACF for deviation from 75%. r(0) = 2.30, r(1) = 1.61, r(2) = 1.13, r(3) = 0.79.The suggested model for this registration is a) MA(1) b) AR(1) c) MA(2) d) AR(2) e) ARMA(1.1)
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