Write an Expression for the Nth Term of the Sequence $a_ { n } = 1 - 3 ^ { n }$

question 30

Multiple Choice

Write an expression for the nth term of the sequence 2, 8, 26, 80, ....

• A) \(a_ { n } = 1 - 3 ^ { n }\)
• B) \(a _ { n } = 4 ^ { n } + 1\)
• C) \(a _ { n } = 3 ^ { n } - 1\)
• D) \(a _ { n } = 4 ^ { n } - 5\)
• E) \(\alpha _ { n } = 1 + 3 ^ { n }\)

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Definitions:

Single Blind Procedure

A research design in which participants are unaware of whether they are in the experimental or control group, but the researchers know.

Neutral Sample Procedure

A method in research where the sample is selected without bias towards any outcome or hypothesis.

Blind Sample Procedure

An experimental technique in which information about the test samples is kept from the participants to prevent bias in the results.

Experimenter Bias

A process where the scientists performing the research influence the results, intentionally or unintentionally, in favor of expected or desired outcomes.