Rancher Harriet is thinking of shifting her operation from cattle to American Bison, but she needs to know how well bison will do on her ranch. She buys 50 female bison that are already inseminated and places 10 of them, picked at random, into their own pasture. The ten females serve as a sample from which rancher Harriet collects demographic data over one year. Use her data to answer the questions below.