2 ms·

going 7 times doesn’t actually increase the likelihood 7x but your point still stands that they would be far more likely to get it

• karagenit 6y ago
  Well, sort of. The increase in likelihood of being sampled due to going to the store N times more than the average person is a function of N and P (the probability of being sampled in any given trip) such that f(N, P): (1 - ((1-P)^N)) / P For a large P you're right, but as P gets very small (let's say that in any given trip you have a 0.01% chance of being sampled) then the increase in likelihood of being sampled approaches N times as much (in this example, it would be 6.999 times as likely). Of course, this assumes they're taking measures to ensure no one gets sampled twice.
  • taeric 6y ago
    Maybe, more rapid trips may reduce your odds of being there when the sample happens on a day. Such that you may have a lower p. :)
  • CyberDildonics 6y ago
    They also said people who went to the grocery store 7x as much were 7x as likely to be infected which is what I think this person was replying to.