The Chart Shows the Number of Research Articles in the Prominent

question 70

Multiple Choice

The chart shows the number of research articles in the prominent journal Physics Review that were written by researchers in Europe during 1983 - 2003 ( $$t = 0$$ represents 1983) .
Which of the following logistic functions best models the data ( t is the number of years since 1983.) Try to determine the correct model without actually computing data points.

• A) \(A ( t ) = \frac { 7.0 } { 1 + 5.4 ( 1.2 ) ^ { - t } }\)
• B) \(A ( t ) = \frac { 4.9 } { 1 + 4.3 ( 1.2 ) ^ { - t } }\)
• C) \(A ( t ) = \frac { 4.9 } { 1 + 4.3 ( 0.7 ) ^ { - t } }\)
• D) \(A ( t ) = \frac { 7.0 } { 1 + 5.4 ( 0.7 ) ^ { - t } }\) According to the model you selected, at what percentage was the number of articles growing around 1984 __________%

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Definitions:

Publication Information

Details regarding the publication of a document or book, including the publisher, date of publication, and ISBN.

Primary Research

The process of gathering new data directly from original sources for a specific research purpose, as opposed to analyzing existing data.

Costly Research Efforts

Investment in research activities that require significant resources, both financial and time, often for complex or innovative investigations.

Analytical Report

A document that presents a detailed examination and analysis of a specific issue or problem.