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)
$$\begin{array} { | l | l | l | l | l | l | }
\hline \text { Year, } \boldsymbol { t } & 0 & 5 & 10 & 15 & 20 \
\hline \text { Research Articles, } \boldsymbol { A } ( \mathbf { 1 } , \mathbf { 0 0 0 } ) & 1.2 & 2.1 & 3.8 & 5.1 & 5.7 \
\hline
\end{array}$$
a. What is the logistic regression model for the data (Round all coefficients to two significant digits.)
$A(t)=\frac{\_\_\_\_}{1+\_\_\_\_ ^. (\_\_\_\_)^{-t}}$
b. At what value does the model predict that the number of research articles will level off

__________ articles
b.c. According to the model, how many Physics Review articles were published by U.S. researchers in 1990 ( t=7)

Question

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)
$$\begin{array} { | l | l | l | l | l | l | } 
\hline \text { Year, } \boldsymbol { t } & 0 & 5 & 10 & 15 & 20 \
\hline \text { Research Articles, } \boldsymbol { A } ( \mathbf { 1 } , \mathbf { 0 0 0 } ) & 1.2 & 2.1 & 3.8 & 5.1 & 5.7 \
\hline
\end{array}$$
 a. What is the logistic regression model for the data  (Round all coefficients to two significant digits.)
$A(t)=\frac{\_\_\_\_}{1+\_\_\_\_ ^. (\_\_\_\_)^{-t}}$
b.  At what value does the model predict that the number of research articles will level off

__________ articles
 b.c. According to the model, how many Physics Review articles were published by U.S. researchers in 1990 ( t=7)

Quizplus · Accepted Answer

The Answer of 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)
$$\begin{array} { | l | l | l | l | l | l | } 
\hline \text { Year, } \boldsymbol { t } & 0 & 5 & 10 & 15 & 20 \
\hline \text { Research Articles, } \boldsymbol { A } ( \mathbf { 1 } , \mathbf { 0 0 0 } ) & 1.2 & 2.1 & 3.8 & 5.1 & 5.7 \
\hline
\end{array}$$
 a. What is the logistic regression model for the data  (Round all coefficients to two significant digits.)
$A(t)=\frac{\_\_\_\_}{1+\_\_\_\_ ^. (\_\_\_\_)^{-t}}$
b.  At what value does the model predict that the number of research articles will level off

__________ articles
 b.c. According to the model, how many Physics Review articles were published by U.S. researchers in 1990 ( t=7)

The Chart Shows the Number of Research Articles in the Prominent