The answer depends on the distribution of names and - depending on the question - surnames across the population of interest. There will be variations between different cultures.
The probability that a certain outcome will occur which is determined through reasoning or calculation.
"Chance"
Since every month except May, June, July and August has a R in its name, the odds of someone born in a month whose name contains an R is roughly 2/3. The exact number is closer to 66.32% (242.2425 ÷ 365.2425).
S. R. Logan has written: 'Physical chemistry for the biomedical sciences' -- subject(s): Chemistry, Physical and theoretical, Physical and theoretical Chemistry 'Fundamentos de Cinetica Quimica'
It means multiply, Probaility of A and B means probability of A multiplied by probability of B.
R. C. McLean has written: 'Textbook of theoretical botany' -- subject(s): Botany
50% - 50% chance either way.
R. Stephen Berry has written: 'Physical and chemical kinetics' -- subject(s): Physical and theoretical Chemistry 'The structure of matter' -- subject(s): Molecular structure, Physical and theoretical Chemistry, Quantum theory
100 percent.
R. McWeeny has written: 'Quantum mechanics: principles and formalism' -- subject(s): Quantum theory 'Theoretical chemistry' -- subject(s): Addresses, essays, lectures, Physical and theoretical Chemistry 'Mathematics as a tool of modern science' 'Symmetry'
Probability is 4 aces/52 total cards = 1/13 = .07692
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