Calculate the periodogram for the detrended series obtained in part (A). Identify the frequencies of the two main peaks (with an obvious one at the frequency of one cycle every 12 months). What is the probable El Nino cycle indicated by the minor peak?

answer: answer is c!

ok i got to organize the

3/15 and 12/55

3*

aha

3*4 equals 12 but not

a: no

b:

8/24 12/35

no

gautie

it's c

5/18 = 25/90

5*5=25

18*5 = 90

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step-by-step explanation:

your answer would be 12

answer: sensy

step-by-step explanation: