Which of the Following Is the Correct Formula for the One-Sample

Multiple Choice

Which of the following is the correct formula for the one-sample chi-square?

A) $Y = \Sigma ( E + O ) ^ { 2 } / E$
B) $\chi ^ { 2 } = \Sigma ( E - O ) ^ { 2 } / E$
C) $\chi ^ { 2 } = \Sigma ( E + O ) ^ { 2 } / E$
D) $Y ^ { 2 } = \Sigma ( E - O ) ^ { 2 } / E$