THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The table below shows the quarterly sales of a gifting store.The forecaster uses the Holt-Winters multiplicative model to determine the forecast for future periods.
Given: α = 0.6,β = 0.5,and γ = 0.4.

-The value of mean square displacement is:
A)17.28
B)30.55
C)1,534.28
D)3,451.28

Question

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The table below shows the quarterly sales of a gifting store.The forecaster uses the Holt-Winters multiplicative model to determine the forecast for future periods.
Given: α = 0.6,β = 0.5,and γ = 0.4.
 
-The value of mean square displacement is:
A)17.28 
B)30.55 
C)1,534.28 
D)3,451.28

Quizplus · Accepted Answer

The mean square displacement is given by the formula:$$ = 6Dt$$where D is the diffusion coefficient and t is the time.In this case, D = 2.88 cm^2/s and t = 10 s.Therefore,$$ = 6(2.88 cm^2/s)(10 s) = 1,534.28 cm^2$$