Ss x Ss
F1 SS - 25 % and Ss - 50 % - rabbits with short hair, because S is a dominant gene;
ss - 25 % - rabbits with long hair;
If the probability of one offspring with long hair is 25%, then the probability of three offsprings with long hair we will count out using the law:
If 2 events are independent, then the joint probability is a product of several probabilities.
The probability of one offspring with long hair is: 0.25, then
P = 0.25 * 0.25 * 0.25 = 0.015625 or 1.5625 %.