Figure 6(a) shows the time series of the annual suicide rate (per 100,000 inhabitants) in Australia, between 1915 and 2004. Figure 6(b) shows the first differences of the rate and Figure 6(c) shows the second differences. Suicide rato 16.00- 14 00 12.00- 10:00- 1.00 6.00- (a) 1915 En 1345 1958 Year 1965 1079 1995 1993 4.00- 2.00 Entrenamente 0.00- 2.00- -4.00- Figure 6(a), (b) & (c) (b) 1915 A 1929 1935 (942 1968 Year SASA Y SACI Y X1505 2.00- 0.00- 2.00- -4.00 (c) 1915 1938 1945 Year yges 1306 Is the suicide rate stationary over the period? Identify the order of differencing d required to obtain stationarity in mean and in variance. Explain your answer.
Figure 6(a) shows the time series of the annual suicide rate (per 100,000 inhabitants) in Australia, between 1915 and 2004. Figure 6(b) shows the first differences of the rate and Figure 6(c) shows the second differences. Suicide rato 16.00- 14 00 12.00- 10:00- 1.00 6.00- (a) 1915 En 1345 1958 Year 1965 1079 1995 1993 4.00- 2.00 Entrenamente 0.00- 2.00- -4.00- Figure 6(a), (b) & (c) (b) 1915 A 1929 1935 (942 1968 Year SASA Y SACI Y X1505 2.00- 0.00- 2.00- -4.00 (c) 1915 1938 1945 Year yges 1306 Is the suicide rate stationary over the period? Identify the order of differencing d required to obtain stationarity in mean and in variance. Explain your answer.
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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Transcribed Image Text:Figure 6(a) shows the time series of the annual suicide rate (per 100,000 inhabitants) in
Australia, between 1915 and 2004. Figure 6(b) shows the first differences of the rate and
Figure 6(c) shows the second differences.
Suicide rato
1600-
14 00
10.00
8.00-
6.00-
(a)
1915
1325
2.00-
A EM
0.00-
2.00-
(1920
1045
1955
Year
1965
MY
way
1075
1985
4.00-
1995
-4.00-
Figure 6(a), (b) & (c)
(b)
1915
(929
1942
·1960
Year
Sist y
1385
1005
2.00-
0.00-
2.00-
-4.00-
(c)
Ho
1915
1925
1938
·1245
A9985
Year
1205
A 1975
A
·$353
easy
Is the suicide rate stationary over the period? Identify the order of differencing d required to
obtain stationarity in mean and in variance. Explain your answer.
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