For a Two-Way Contingency Table, the Degrees of Freedom for the Chi-Square

question 3

Multiple Choice

For a two-way contingency table, the degrees of freedom for the chi-square test of independence are defined as.

• A) \(( r - 1 ) + ( c - 1 )\)
• B) \(( r - 1 ) ( c - 1 )\)
• C) \(\frac { ( r - 1 ) } { ( c - 1 ) }\)
• D) \(( r - 1 ) - ( c - 1 )\)

---

Definitions:

Genetic Pollution

Refers to the potential dangers of mixing the genes of one species with those of another.

Different Animals

An expression used to indicate that two or more things are significantly distinct from each other in nature, characteristics, or behavior.

Uniting Genes

The process by which genetic materials combine during sexual reproduction, leading to the mix of genetic traits in offspring.

Radioactive Waste

Radioactive waste refers to materials that remain radioactive after being used in medical, industrial, or scientific processes, requiring careful disposal to protect health and the environment.