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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 parcel of land, value $250,000 is sold to an investor who signs a contract agreeing to pay a deposit of $25,000 followed by equal quarterly payments for as long as necessary, wit
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ABC is a right-angled isosceles triangle, right-angled at B. AP, the bisector of ∠BAC, intersects BC at P. Prove that AC 2 = AP 2 + 2(1+√2)BP 2 Ans: AC = √2AB (Sinc
Stuckeyburg is a very small town in rural America. Use the map to approximate the area of the town. a. 40 miles 2 b. 104 miles 2 c. 93.5 miles 2 d. 92 miles 2
Are there more rational numbers than integers?#
Find out the general formula for the tangent vector and unit tangent vector to the curve specified by r → (t) = t 2 i → + 2 sin t j → + 2 cos t k → . Solution First,
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Infinite Limits : In this section we will see limits whose value is infinity or minus infinity. The primary thing we have to probably do here is to define just what we mean w
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