Write Terms of a Geometric Sequence
- $$\mathrm { a } _ { 1 } = 7 ; \mathrm { r } = \frac { 1 } { 4 }$$

question 286

Multiple Choice

Write Terms of a Geometric Sequence
- $$\mathrm { a } _ { 1 } = 7 ; \mathrm { r } = \frac { 1 } { 4 }$$

• A) \(7 , \frac { 7 } { 4 } , \frac { 7 } { 16 } , \frac { 7 } { 64 } , \frac { 7 } { 256 }\)
• B) \(7,28,112,448,1792\)
• C) \(\frac { 7 } { 4 } , \frac { 7 } { 16 } , \frac { 7 } { 64 } , \frac { 7 } { 256 } , \frac { 7 } { 1024 }\)
• D) \(7 , \frac { 29 } { 4 } , \frac { 15 } { 2 } , \frac { 31 } { 4 } , 8\)

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Definitions:

Control Variable

A variable that is kept constant or unaltered in an experiment to ensure that the effects observed are due to the independent variable.

Questionnaire

A research instrument composed of a series of questions and other prompts for the purpose of gathering information from respondents.

Psychological Test

An objective and standardized measure of a sample of behavior used to assess psychological constructs such as cognitive abilities and emotional functioning.

Experimental Approach

A method of research in which variables are manipulated to observe effects on other variables, often used to determine cause-and-effect relationships.