1. L

    Pythagorean triple integers' occurrence

    Is there a limit to how many times a particular integer may appear in different Pythagorean triples?
  2. T

    Probability of occurrence of events

    Hello every body, Can any one help me in solving this problem? We have a distribution Poisson with parameter Lambda. What is the probability that in each interval (0,1],(1,2],(3,4] exactly one event will occur? ?? What is the probability that in interval (0,2] two events occur...
  3. K

    12-digit number occurrence determination

    For a 12-digit base ten positive integer N constituted entirely by odd digits, determine the probability that N contains each of the digits 1, 3, 5, 7, 9 at least twice, but at most three times.