Problem 5. 1 out of 1000 births results in fraternal twins; 1 out of 1500 births results in identical twins. Identical twins must be the same sex, but the sexes of fraternal twins are independent. If two girls are twins, what is the probability that they are fraternal twins?© BrainMass Inc. brainmass.com November 24, 2022, 11:53 am ad1c9bdddf
This solution discusses the probability that twins are fraternal in an attached Word document.