Each salesperson in a large department store chain is rated with respect to sales potential for advancement. These traits for the 500 salespeople were cross-classified into the following table: 
What is the probability that the selected salesperson has a fair potential for advancement, given that they have a below average ability?
Definitions:
Transform Fault
A strike-slip fault that accommodates the horizontal movement of one tectonic plate past another.
Mid-Atlantic Ridge
An underwater ridge located in the Atlantic Ocean, forming a divergent tectonic plate boundary that separates the Eurasian and North American plates in the north and the African and South American plates in the south.
Seafloor Spreading
A geologic process in which tectonic plates move apart from each other, allowing magma to rise and solidify as new oceanic crust.
Volcanic Mountain Belt
A volcanic mountain belt refers to a large-scale geographic area dominated by a series of volcanoes, often associated with plate boundaries, where subduction, rifting, or hotspots activities facilitate magma ascent to the surface.
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