Write Terms of a Geometric Sequence
- $$a _ { n } = 3 a _ { n - 1 } ; a _ { 1 } = - 2$$

question 215

Multiple Choice

Write Terms of a Geometric Sequence
- $$a _ { n } = 3 a _ { n - 1 } ; a _ { 1 } = - 2$$

• A) \(- 2 , - 6 , - 18 , - 54 , - 162\)
• B) \(- 6 , - 18 , - 54 , - 162 , - 486\)
• C) \(3,6 , - 18 , - 54 , - 162\)
• D) \(- 2,1,4,7,10\)

---

Definitions:

Average Ages

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.

Degrees of Freedom

The number of independent values or quantities that can vary in the analysis without breaking any constraints, relevant in statistical tests to assess the validity of the test.