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Calculate the expected return, variance, and standard deviation for a portfolio of four equally-weighted stocks with returns of 16.4%, -9.2%, 7.9%, and 22.0%. (Show your work)
Secretory Vesicle
Membrane-bound vesicles that store and transport substances produced by cells to their exterior.
Exocytosis
A cellular process where vesicles within the cell transport materials to the cell membrane for release into the extracellular environment.
Centrosome
An organelle near the nucleus in the cell cytoplasm, playing a key role in cell cycle progression and mitosis as the main microtubule organizing center.
Membrane Potential
The voltage difference across a cell's plasma membrane, crucial for the conduction of electrical impulses in nerve, muscle cells, and for cellular homeostasis.
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