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Impediments in time series analysis
Accuracy of data in reflecting
a) Drastic changes for illustration in the advent of a major competitor, period of war or unexpected change of taste.
b) For long term forecasting external and internal pressures makes historical data less effective.
Moving Average
Periodical data for illustration monthly sales may have random fluctuation each month despite a common trend being evident. Moving average assists in smoothing away these random changes.
A moving average is the forecast for a period which takes the average of the previous periods.
A tower and a monument stand on a level plane. the angles of depression on top and bottom of the monument viewed from the top of the tower are 13 degrees and 31 degrees, respective
The Definition of the Derivative : In the previous section we saw that the calculation of the slope of a tangent line, the instantaneous rate of change of a function, and the ins
How do I find a bearring using trig?
Sketch the graph of y = ( x -1) 2 - 4 . Solution Now, it is a parabola .Though, we haven't gotten that far yet and thus we will have to select
Theorem If {a n } is bounded and monotonic then { a n } is convergent. Be cautious to not misuse this theorem. It does not state that if a sequence is not bounded and/or
Interpretations of Definite Integral There are some quick interpretations of the definite integral which we can give here. Firstly, one possible interpretation of the defini
Leptokurtic a) A frequency distribution which is lepkurtic has normally a higher peak than that of the general distribution. The coefficient of kurtosis while determined will
es-335
2 times n times n divided by n
if A be the area of a right triangle and b be one of the sides containing the right angle, prove that the length of the altitude on the hypotenuse is 2Ab/rootb^4+4A^2
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