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The binomial distribution gives the frequencies of "successes" in a fixed number of independent "trials". Use this tag for questions about data that might be binomially distributed or for questions about the theory of this distribution.

2 votes
1 answer
1k views

Bayesian prior: What should I set the beta parameters to when we know that proportion estima...

When trying to estimate the proportion of a sample (eg. proportion of patients undergoing an operation who experience a complication) one starts with the data (number of "successes", number of trials) …
Farrel's user avatar
  • 750
1 vote
1 answer
402 views

How do you test for independence of k binomial variables?

I am analyzing some orthopedic data and our outcome is union vs. non-union of a fracture. One of our independent variables is whether or not the initial fracture was closed (skin intact) vs. open. Su …
Farrel's user avatar
  • 750
2 votes

Exact two sample proportions binomial test in R (and some strange p-values)

The syntax of the binom.test is your successes within a number of trials compared to a population point estimate. Although you entered it as p=8/20, the calculation is as if that was a God-given absol …
Farrel's user avatar
  • 750