Four pairs of shoes you like are for sale. The black boots cost $70, the red boots cost $60, the white sneakers cost $50, and the green sandals cost $30. Complete the statements regarding the 3 different types of distributions when taking samples of size n = 2 and calculating the mean of each sample. The distribution is the distribution of the cost of all the pairs of shoes. The distribution is the distribution of all the average costs of randomly selecting two pairs of shoes. The distribution is the distribution that results from selecting two pairs of shoes.