There are a variety of deseasonalizing methods, but they are typically variations of: a. ratio-to-seasonality methods b. linear trend c. ratio-to-exponential-smoothing methods d. ratio-to-moving-average methods

Correct answer is D

Step-by-step explanation:

Ratio-to-moving average method : The method of monthly totals or monthly averages does not give any consideration to the trend which may be present in the data. The ratio-to-moving-average method is one of the simplest of the commonly used devices for measuring seasonal variation which takes the trend into.

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )

probably .5

i can on others if necessary.