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The index model has been estimated for stocks A and B with the following results: RA = 0.01 + 0.8RM + eA.
RB = 0.02 + 1.2RM + eB.
ΣM = 0.20; σ(eA) = 0.20; σ(eB) = 0.10.
The standard deviation for stock A is
Watershed
A geographical area where all water running off the land drains into a shared body of water, such as a river, lake, or ocean.
Floodplain Zone
An area of land adjacent to a stream or river which stretches from the banks of its channel to the base of the enclosing valley walls and experiences flooding during periods of high discharge.
Marine Organisms
Living creatures that inhabit the ocean or sea, including both plants and animals.
Nekton
Aquatic animals that can swim and move independently of water currents, including fish, whales, and squids.
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