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GATE Mechanical 2014 Set 1 | Question: 19

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In exponential smoothening method, which one of the following is true?

  1. $0  \leq \alpha \leq 1$ and high value of $\alpha$ is used for stable demand
  2. $0 \leq \alpha \leq 1$ and high value of $α$ is used for unstable demand
  3. $\alpha \geq 1$ and high value of $\alpha$ is used for stable demand
  4. $\alpha \geq 0$ and high value of $\alpha$ is used for unstable demand
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