Solve the Rational Inequality $$\frac { 1 } { x + 20 } > 0$$

question 414

Multiple Choice

Solve the rational inequality. Write the solution set in interval notation.
- $$\frac { 1 } { x + 20 } > 0$$

• A) \([ 20 , \infty ]\)
• B) \(( - 20 , \infty )\)
• C) \(( - \infty , 20 )\)
• D) \(( 20 , - \infty )\)

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The spread of characteristics or values within a whole population.

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The mean value of the ages within a specific group or dataset, calculated by adding all the ages together and dividing by the total number of ages included.

Pooled Variance

An estimate of variance across different samples or groups that assumes the underlying population variances are equal.

T-Statistic

A type of test statistic calculated to determine if a hypothesis should be accepted or rejected, commonly used in a t-test to compare means.