The NEC Requires That A(n) __________ Be Used for the Protection

question 6

Multiple Choice

The NEC requires that a(n) __________ be used for the protection of conductors sized 4 AWG and larger installed in conduit.

• A) antioxidant
• B) coupling
• C) locknut
• D) insulated bushing

Understand the impact of demographic trends on economic development in DVCs and IACs.

Recognize the role of agriculture in the economies of developing countries.

Analyze the effects of income distribution on savings and investment in DVCs.

Appreciate the significance of income disparities between IACs and DVCs.

---

Definitions:

Correlation Coefficient

A numerical measure that indicates the extent to which two variables fluctuate together.

Random Variables

A variable whose values depend on outcomes of a random phenomenon, with each outcome having a corresponding probability.

Coefficient of Determination

A measure used in statistical models to indicate the proportion of the variance in the dependent variable that is predictable from the independent variable(s).

Regression Line

A line of best fit through a scatter plot of data points in linear regression, representing the relationship between the independent and dependent variables.