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In a random sampling technique, every unit of the population has a randomly varying chance or probability of being included in the sample.
Lewis Dot Structure
A diagram that represents the valence electrons of atoms within a molecule, showing the bonding between atoms as well as lone pairs of electrons.
He
Helium, a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas series in the periodic table.
Lewis Dot Structure
A graphical representation of the valence electrons of atoms, indicating how the electrons are shared or paired between atoms in a molecule.
Ca
Calcium, a chemical element with the symbol Ca and atomic number 20, an alkaline earth metal essential for living organisms, particularly in cell physiology.
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