If we assume that the sex ratio in a dioecious(i.e., a species where male and female reproductive organs only occur in different individuals) population is 1 male : 1 female, what is the probability of a female producing a litter of three (3) in which there are 2 female and 1 male offspring, irrespective of birth order. Please round your answer to three (3) decimal places and be as precise as possible when making your calculations.