$${\chi ^2}$$ is calculated by the help of formula
A. $${\chi ^2} = \frac{{\sum {{\left( {{\text{O}} - {\text{E}}} \right)}^2}}}{{\text{E}}}$$
B. $${\chi ^2} = \frac{{\sum \left( {{\text{O}} - {\text{E}}} \right)}}{{{{\left( {\text{E}} \right)}^2}}}$$
C. $${\chi ^2} = \frac{{\sum {{\left( {{\text{O}} - {\text{E}}} \right)}^2}}}{{\sum {\text{O}}}}$$
D. $${\chi ^2} = \frac{{\sum {{\left( {{\text{E}} - {\text{O}}} \right)}^2}}}{{\sum {{\left( {\text{O}} \right)}^2}}}$$
Answer: Option A
This Question Belongs to Agriculture >> Agricultural Statistics
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