The following table gives the observed and expected frequencies in tossing a dice 120 times. For testing the hypothesis that the dice is fair , one is required to compute $\displaystyle \chi^2$

Find the value.

$\displaystyle

\begin{array}{|c|c|c|c|c|c|c|c|}

Dice\ face&1&2&3&4&5&6\\

\hline

Observed\ frequency&25&17&15&23&24&16\\

\end{array}

$