The Variance Is a Measure of Dispersion or Variability of a Random

question 86

Multiple Choice

The variance is a measure of dispersion or variability of a random variable. It is a weighted average of the

• A)square root of the deviations from the mean
• B)square root of the deviations from the median
• C)squared deviations from the median
• D)squared deviations from the mean

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Definitions:

Butylated Hydroxytoluene

An antioxidant commonly used in food, cosmetics, and industrial fluids to prevent oxidative degradation.

Radical Scavenger

A molecule that can donate an electron to a free radical without becoming a radical itself, effectively neutralizing the free radical.

Resonance Stabilized

A molecule or ion that is stabilized by the delocalization of electrons across different structures or resonance forms.

Free Radical Bromination

A chemical reaction where bromine radicals selectively react with hydrogen atoms in an organic molecule to form brominated products.