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The symbol for probability of success in a binomial trial is the letter p. It is the symbol used for probability in all statistical testing.
The letter p, in lower case.
None, since there are no symbols and so nothing which can be "immediately followed by symbol".None, since there are no symbols and so nothing which can be "immediately followed by symbol".None, since there are no symbols and so nothing which can be "immediately followed by symbol".None, since there are no symbols and so nothing which can be "immediately followed by symbol".
The symbol for standard deviation is pronounced as "sigma" in statistics. It is represented by the Greek letter σ. In mathematical and statistical contexts, σ is commonly used to denote the standard deviation of a population or a sample.
The answer is r.Actually 'r' is the usual symbol for the correlation coefficient statistic calculated for a sampleof paired values. The correlation coefficient for a population of pairs of random variables distributed according to a binomial normal distribution is usually denoted by the Greek letter 'rho'.