Perform the Indicated Operation $$\frac { a } { a ^ { 2 } + 10 a + 25 } + \frac { 7 } { a ^ { 2 } + 7 a + 10 }$$

question 49

Multiple Choice

Perform the indicated operation. Simplify if possible.
- $$\frac { a } { a ^ { 2 } + 10 a + 25 } + \frac { 7 } { a ^ { 2 } + 7 a + 10 }$$

• A) \(\frac { a ^ { 2 } + 2 a + 7 } { ( a + 5 ) ^ { 2 } ( a + 2 ) }\)
• B) \(\frac { a ^ { 2 } + 2 a + 7 } { ( a + 5 ) ( a + 2 ) }\)
• C) \(\frac { a ^ { 2 } + 9 a + 35 } { ( a + 5 ) ^ { 2 } ( a + 2 ) }\)
• D) \(\frac { a ^ { 2 } - 9 a - 35 } { ( a + 5 ) ^ { 2 } ( a + 2 ) }\)

Understand the concept of effect size in statistical analysis.

Identify what constitutes small, medium, and large effect sizes according to Cohen's benchmarks.

Distinguish between the significance levels of p < .05 and p < .01 and their implications for statistical significance.

Recognize how effect sizes relate to the variance explained in a study.

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