Express Using Positive Exponents $( - 5 ) ^ { - 2 }$

question 158

Multiple Choice

Express using positive exponents. Then simplify.
- $( - 5 ) ^ { - 2 }$

• A) 25
• B) \(\frac { 1 } { 25 }\)
• C) \(- 25\)
• D) \(- \frac { 1 } { 25 }\)

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Definitions:

SST

Total sum of squares in statistical analysis, measuring the total variation in the observed data.

Least Squares Estimate

A method in statistics for estimating the best-fitting line through a set of points by minimizing the sum of the squares of the differences between observed and estimated values.

Y-intercept

The point where a line crosses the Y-axis of a graph, representing the value of the dependent variable when all independent variables are set to zero.

Critical Value Approach

A method in hypothesis testing that involves comparing the test statistic to pre-determined values to decide whether to reject the null hypothesis.