A project consists of three activities with information as shown in the table.What is the overall variance of the project? 
Definitions:
Personality Types
A classification of different types of individuals' personalities based on certain characteristics and behavioral patterns they share.
Factorial Designs
Experimental designs used to study the effects of two or more factors by varying them simultaneously, allowing the investigation of interactions among factors.
Independent Variable
The variable in an experiment that is manipulated or changed to observe its effects on the dependent variable.
Interaction Effect
A statistical phenomenon where the effect of one independent variable on a dependent variable varies depending on the level of another independent variable.
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