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Thanks for that. I have responded to Fed2. HLSmith's answer may be the way forward but right now it is quite a few steps above my level of understanding. I have some reading to do.

Thanks for persisting. I am reading about it but there is catchup reading material on stats that I need to read to get to where I can understand the test as it is not immediately clear to me how I would apply it. So it's back to the books. I was under the impression that my query was a fairly...

Thanks for getting back so quick. I did not raise any political science considerations. If you feel I did please point me to the words I used that would have led someone to believe I did. I thought I was asking a statistical question - how to determine whether a sample was representative based...

Folks, I posted this. http://www.talkstats.com/threads/representative-sample-how-to-decide.77430/ If a moderator has time I would appreciate them going through the thread and seeing whether I have some cause to feel that I am not getting the best 'poster' experience. Given this is my first...

A lot of reading into my query. Why would be the assumption be that I am going to spread bad information? Why is there the assumption I am going to argue against the vaccine? I am not in fact. I am pro-vaccine. I have pushed people with unresearched/wrong research fears to re-think their...

Thanks for the two responses. Maybe I will be clearer. I have read that with the MRNA vaccine there is something like 1 - 2 in a 100000 chance of pericarditis, myocarditis. (https://www.macleans.ca/news/myocarditis-covid-vaccine-pfizer-moderna-mrna/ - “What we’re calling the signal—the...

I am interested in understanding some of the Covid 19 statistics being thrown around. What I want to know is how to figure out whether a sample that was used to generate probabilities was actually representative of the population that was supposed to be sampled. I want to do this 'backwards' so...