Express Using Positive Exponents $\left( \frac { 1 } { 2 } \right) ^ { - 2 }$

question 73

Multiple Choice

Express using positive exponents. Then simplify.
- $\left( \frac { 1 } { 2 } \right) ^ { - 2 }$

• A) 4
• B) \(\frac { 1 } { 4 }\)
• C) \(- \frac { 1 } { 4 }\)
• D) \(- 4\)

Identify and explain the advantages and disadvantages of various sampling techniques.

Recognize the ethical considerations in choosing a sample size and method.

Distinguish between probability and nonprobability sampling methods.

Analyze the impact of sampling methods on the generalizability of research findings.

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