For two factories A and B, we have the following data:
\( \begin{array}{lcc} & \text { Factory A... VIDEO
For two factories A and B, we have the following data:
\( \begin{array}{lcc} & \text { Factory A } & \text { Factory B } \\ \text { No. of wage earners } & 50 & 100 \\ \text { Average monthly wages (₹) } & 1200 & 850 \\ \text { Standard deviation (₹) } & 9 & 16\end{array} \)
Which factory has higher salary bill?
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