Consider the following time series data. Week
1
N
3
4
5
6
Value
19
13
15
12
16 13
Using the naive method (most recent value) as the forecast for the next week, compute the following measures of forecast accuracy.
(a) mean absolute error
MAE
(b) mean squared error
MSE
(C) MAPE
(D) forecast for week 7

step-by-step explanation:

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.