The Formula for the Sample Variance Is
A) $S _ { y } ^ { 2 } = \frac { 1 } { n - 1 } \sum _ { i = 1 } ^ { n } \left( Y _ { i } - \bar { Y } \right)$

question 64

Multiple Choice

The formula for the sample variance is

• A) \(S _ { y } ^ { 2 } = \frac { 1 } { n - 1 } \sum _ { i = 1 } ^ { n } \left( Y _ { i } - \bar { Y } \right)\)
• B) \(S _ { y } ^ { 2 } = \frac { 1 } { n - 1 } \sum _ { i = 1 } ^ { n } \left( Y _ { i} - \bar { Y } \right) ^ { 2 }\)
• C) \(S _ { y } ^ { 2 } = \frac { 1 } { n - 1 } \sum _ { i = 1 } ^ { n } \left( Y _ { i } - { } ^ { \mu } Y \right) ^ { 2 }\)
• D) \(S _ { y } ^ { 2 } = \frac { 1 } { n - 1 } \sum _ { i = 1 } ^ { n - 1 } \left( Y _ {i } - \bar { Y } \right) ^ { 2 }\)

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Definitions:

Total Product Curve

A graphical representation that shows the total quantity of output a firm produces, given a fixed amount of inputs, as the amount of one input varies.

Marginal Revenue Curve

A graphical representation showing the change in total revenue that results from selling one additional unit of a product or service.

Total Utility

The total satisfaction received from consuming a certain quantity of a good or service.

Substitution

The act of replacing one good or service with another in response to changes in price or preference, affecting consumer choices and market demand.