5. Application As a sample of a radioactive element decays into more stable elements, the amount of radiation it gives off decreases. The level of radiation can be used to estimate how much of the original element remains. Here are measurements for a sample of radium-227. Time (h) Radiation Level (%) 100 1 37 2 mtino 4 5.0 0.3

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5. Application As a sample of a radioactive
element decays into more stable elements,
the amount of radiation it gives off
decreases. The level of radiation can be
used to estimate how much of the original
element remains. Here are measurements
for a sample of radium-227.
Time (h) Radiation Level (%)
0
100
-NM fino
3
5.0
1.8
0.3
acer
Transcribed Image Text:5. Application As a sample of a radioactive element decays into more stable elements, the amount of radiation it gives off decreases. The level of radiation can be used to estimate how much of the original element remains. Here are measurements for a sample of radium-227. Time (h) Radiation Level (%) 0 100 -NM fino 3 5.0 1.8 0.3 acer
a) Create a scatter plot for these data.
b) Use an exponential regression to
find the equation for the curve of best
fit.
c) Is this equation a good model for the
radioactive decay of this element?
Explain why or why not.
Transcribed Image Text:a) Create a scatter plot for these data. b) Use an exponential regression to find the equation for the curve of best fit. c) Is this equation a good model for the radioactive decay of this element? Explain why or why not.
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