Do you have a radon mitigations system installed in your home?

Response Unweighted Frequency Weighted Percentage Standard Error 95% Confidence Limit
Lower Upper
Yes, a radon mitigation systems is installed in the home 760 8.4 0.4 7.7 9.1
No 8357 91.2 0.4 90.5 91.9
No, I live in a new home that was built with radon resistant techniques 42 0.4 0.1 0.3 0.6

Among all respondents excluding those who did not take action after
detecting radon, levels of more than 4.0 picocuries per liter (pCi/L)
in their household, unknowns and refusals.
On Questionnaire Split B