A carbon monoxide detector is a device that detects the
presence of carbon monoxide gas. It may, or may not be,
combined with a smoke alarm. Do you have one or more
carbon monoxide detectors installed in your home?

Response Unweighted Frequency Weighted Percentage Standard Error 95% Confidence Limit
Lower Upper
Yes 3117 61.4 0.9 59.7 63.2
No 1995 38.6 0.9 36.8 40.3

Among all respondents, excluding unknowns and refusals.
 
On Questionnaire Split B