"Radon: The Problem No One Wants to Face" is the title of anarticle appearing in Consumer Reports. Radon is a gasemitted from the ground that can collect in houses and buildings.At certain levels it can cause lung cancer. Radon concentrationsare measured in picocuries per liter (pCi/L). A radon level of 4pCi/L is considered "acceptable." Radon levels in a house vary fromweek to week. In one house, a sample of 8 weeks had the followingreadings for radon level (in pCi/L).
(a) Find the mean, median, and mode. (Round your answers to twodecimal places.)
(b) Find the sample standard deviation, coefficient of variation,and range. (Round your answers to two decimal places.)
(c) Based on the data, would you recommend radon mitigation in thishouse? Explain.
Yes, since the median value is over "acceptable" ranges,although the mean value is not.Yes, since the average and medianvalues are both over "acceptable"ranges. No, since the average and medianvalues are both under "acceptable" ranges.Yes, since the averagevalue is over "acceptable" ranges, although the median value isnot.
