Questions tagged [statistics]

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9
votes
2answers
357 views

Surgical masks - do they prevent the spread of disease?

Now and then you see something like this when looking at pictures from Japan: There are supposedly many reasons for this, but one is, quoting a summary from Wikipedia: Surgical masks are popularly ...
11
votes
1answer
265 views

Lifetime cancer risk for people with healthy lifestyle

According to this, lifetime cancer risk for males is about 43% and females 38%. There are many factors that increase cancer risk, like: smoking drinking alcohol obesity lack of physical activity ...
4
votes
2answers
89 views

Is the day-of-week variance in COVID-19 case numbers a well-established phenomenon?

Right now (April 27), the JHU data on new COVID-19 cases in the US show a very distinct weekly rhythm; reports are lowest on the weekends and peak in mid-week. This isn't at all surprising — any ...
3
votes
2answers
84 views

Why is the reported number of COVID-19 deaths lower on Sundays and Mondays in the US?

I was looking at the Daily Deaths from COVID-19 from Worldometers and I noticed that the number is always lower on Sundays and Mondays. Why is that? Am I interpreting the graphs correctly?
2
votes
1answer
130 views

Are there any studies on health effects of smoking once a month or less?

Are there any studies on health effects of smoking once a month or less? There's very little out there on very rare smokers, and as such I've been unable to find any studies along these lines for ...
2
votes
0answers
105 views

Are there any studies on health effects of pipe smoking once a week or less?

Are there any studies on health effects of pipe smoking once a week or less? There's very little out there on rare pipe smokers, and as such I've been unable to find any studies along these lines for ...