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• It is the dicrease in the quantity or price

  Downward Trend
• It is the increase in the quantity or price

  Upward Trend
• It is a continuous increase and decrease in the number over time

  Linear
• These are non-leniar curved line where data values rises or falls not  at a steady rate but a higher rate

  Exponential Trend
• It is a curved line that shows date values rise or fall initially, then suddenly stops rising or falling


  Damped Trend
• It is when fluctuations repeats over fixed periods of time and are hence predictable and do not extend beyond a year

  Seasonal Trend
• A cyclical process is series of events happens again and again in the same time (Employment, production)


  Cyclical Trend
• These are fluctuations in time series that are short induration, erratic in nature and follow no regularity in the occurence pattern

  Random or Irregular or Error