Your math is a little off. Actually completely wrong. The number of passwords of length N from an alphabet of A characters is A to the power of N, (A^N) so the key ...

Addresses the topics of probability, random variables, discrete and continuous densities, expectation and variance, special distributions (binomial, Poisson, normal, etc.), moment generating functions ...

Provides a one-semester course in probability and statistics with applications in the engineering sciences. Probability of events, discrete and continuous random variables cumulative distribution, ...

Solving Math Riddles is a fun way to practice basic arithmetic skills. The questions range from simple addition and subtraction problems to more complex ones such as solving equations, calculating the ...