Please explain the steps for answering the following question: Why is this theoretical periodogram beginning to approach that of white noise (it's getting atter), yet it is increasing on the interval [0, 1/2]?

Plot (d) 40 0 mnthemenawawawa naman minsan 40 50 100 150 200 Time Periodogram 0 2000 5000 0.0 0.1 02 0.3 0.4 0.5 Frequency Spectral Density 200 400 0 0.0 0.1 0.2 N 0.3 0.4 0.5 Frequency Plot (d) 40 0 mnthemenawawawa naman minsan 40 50 100 150 200 Time Periodogram 0 2000 5000 0.0 0.1 02 0.3 0.4 0.5 Frequency Spectral Density 200 400 0 0.0 0.1 0.2 N 0.3 0.4 0.5 Frequency