In 1940 the average size of a U.S. farm was 174 acres, Let's say that the standard deviation was 51 acres. Suppose we randomly survey 39 farmers from 1940. In words. define the random variable X O the number of acres of a U.S. farm the number of U.S. farms O the number of animals on a U.S. farm the number of square feet of a U.S. farm Part (b) In words, define the random variable X the average number of animals on a U.S. farm the average number of farms in each state in the United States the average number of acres of a farm in the sample of 39 farmers O the average number of square foot of a farm in the sample of 39 farmers Part (c) Give the dutybution of X [Round your standard deviation to two decimal places.) X - Part (8) The middle 50% of the distribution for X. the bounds of which form the distance represented by the IOR, lies between what two values? (Round your answers to two decimal places ) acres : (smaller value) acres (larger value)