The mean value of land and building per acre from a sample of farms is $1200, with a standard deviation of $300. The data set has a bell-shaped distribution. Assume the number of farms in the sample is 74. (a) Use the empirical rule to estimate the number of farms whose land and building values per acre are between $600 and $1800. (b) If 25 addition farms were sampled, about how many of these farms would you expected to have land and building values between $600 per acre and $1800 per acre? Can you please explain to me how to figure out this problem?