When laboratory rats are exposed to asbestos fibers, some of them develop lung tumors. The table lists the results of several experiments by different scientists. Asbestos exposure (fibers/mL) y = 50 400 500 900 1,100 1,600 1,800 2,000 3,000 Percent of mice that develop lung tumors 3 11 27 41 38 37 49 (a) Find the regression line for the data. (Use x for asbestos exposure in fibers/mL and y for percent of mice with tumors. Round your values to four decimal places.) (b) Construct a scatter plot and graph the regression line. 4
When laboratory rats are exposed to asbestos fibers, some of them develop lung tumors. The table lists the results of several experiments by different scientists. Asbestos exposure (fibers/mL) y = 50 400 500 900 1,100 1,600 1,800 2,000 3,000 Percent of mice that develop lung tumors 3 11 27 41 38 37 49 (a) Find the regression line for the data. (Use x for asbestos exposure in fibers/mL and y for percent of mice with tumors. Round your values to four decimal places.) (b) Construct a scatter plot and graph the regression line. 4
Chapter6: Exponential And Logarithmic Functions
Section6.8: Fitting Exponential Models To Data
Problem 3TI: Table 6 shows the population, in thousands, of harbor seals in the Wadden Sea over the years 1997 to...
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When laboratory rats are exposed to asbestos fibers, some of them develop lung tumors. The table lists the results of several
experiments by different scientists.
Asbestos
exposure
(fibers/mL)
y =
50
Mice with Tumors (%)
400
O
500
900
1,100
1,600
1,800
2,000
3,000
3000
2500
2000
1500
(a) Find the regression line for the data. (Use x for asbestos exposure in fibers/mL and y for percent of mice with tumors.
Round your values to four decimal places.)
1000
500
Percent of mice
that develop
lung tumors
(b) Construct a scatter plot and graph the regression line.
o
0
7
6
11
10
27
41
38
37
49
20 30 40 50
Asbestos Exposure (Fibers/mL.)
60
Mice with Tumors (%)
3000 ●
2500
2000
1500
1000
500
60
0
0
10 20 30 40 50 60
Asbestos Exposure (Fibers/mL)
Ⓡ
4
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