Explain What an External Style Sheet Is and What Its

question 21

Essay

Explain what an external style sheet is and what its major benefit is.

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Definitions:

Beta (β)

A measure of the volatility, or systematic risk, of a security or portfolio in comparison to the market as a whole.

Null Hypothesis

A hypothesis that states there is no effect or no difference, serving as the default assumption in hypothesis testing until evidence suggests otherwise.

Alternative Hypothesis

A hypothesis that contradicts the null hypothesis and is usually what the researcher aims to prove.

Average Number

This term often refers to the arithmetic mean, which is calculated by summing all numbers in a set and dividing by the count of those numbers.