n a house vary from week to week. In one house, a sample of 8 weeks had the follow
Chapter5: Exponential And Logarithmic Functions
Section5.5: Exponential And Logarithmic Models
Problem 3ECP: Estimate the age of a newly discovered fossil for which the ratio of carbon-14 to carbon-12 is...
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1."Radon: The Problem No One Wants to Face" is the title of an article appearing in Consumer Reports. Radon is a gas emitted from the ground that can collect in houses and buildings. At certain levels it can cause lung cancer. Radon concentrations are measured in picocuries per liter (pCi/L). A radon level of 4 pCi/L is considered "acceptable." Radon levels in a house vary from week to week. In one house, a sample of 8 weeks had the following readings for radon level (in pCi/L).
| 1.9 | 2.9 | 5.7 | 5.4 | 1.9 | 8.1 | 3.9 | 6.7 |
(a) Find the mean, median, and mode . (Enter your answers to 2 decimal places.)
(b) Find the sample standard deviation, coefficient of variation, andrange . (Enter your answers to 2 decimal places.)
| mean | |
| median | |
| mode |
(b) Find the sample standard deviation, coefficient of variation, and
| s | |
| CV | % |
| range |
Expert Solution
Step 1
Let X be the readings for radon level (in pCi/L).
The given data
| 1.9 | 2.9 | 5.7 | 5.4 | 1.9 | 8.1 | 3.9 | 6.7 |
It is asked to
- (a) Find the mean, median, and mode.
- (b) Find the sample standard deviation, coefficient of variation, and range.
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