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Summation Tutorial

Example:

$$\text{Summation}\;\sum(x)=\;\sum_{i=1}^n X_i\;=$$

$$X_1+X_2+X_3+…+X_n$$

We have 4 values:

  • X=15
  • X=25
  • X=35
  • X=45

BY using the above equation, we can calculate the summation notation.

$$\text{Summation}\;\sum(x)=\;\sum_{i=1}^n X_i\;=$$

$$15+25+35+45=130$$