Question: 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

€œRadon: 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 €œacceptable.€ 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):

(a) Find the mean, median, and mode.
(b) Find the sample standard deviation, coefficient of variation, and range.

1.9 2.8 5.7 4.2 1.9 8.6 3.9 7.2

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