What is the correct formula for the chi-square statistic?
A) $x ^ { 2 } = \sum \left[ \frac { ( O - E ) } { E } \right]$
B) $x ^ { 2 } = \sum \left[ \frac { ( O - E ) ^ { 2 } } { E } \right]$
C) $\chi ^ { 2 } = \sum ( O - E ) ^ { 2 }$
D) $x ^ { 2 } = \sum \left[ \frac { ( O - E ) } { E } \right] ^ { 2 }$

Question

Quizplus · Accepted Answer

The correct formula for the chi-square statistic is $ \chi ^ { 2 } = \sum \left[ \frac { ( O - E ) ^ { 2 } } { E } \right] $, where $O$ represents the observed frequency and $E$ represents the expected frequency.

What Is the Correct Formula for the Chi-Square Statistic? A) x2=∑[(O−E)E]x ^ { 2 } = \sum \left[ \frac { ( O - E ) } { E } \right]x2=∑[E(O−E)​]

What Is the Correct Formula for the Chi-Square Statistic?
A) $x ^ { 2 } = \sum \left[ \frac { ( O - E ) } { E } \right]$