You are planning a prospective study to try to prove a cause and effect relationship between dipping snuff and throat cancer. Your administrator is concerned about this snuff study. The administrator would like to consider using a case-control study model rather than the prospective one you are planning. One of the biggest reasons the administrator is promoting the case-control model is because case-control is less expensive than prospective studies because it uses existing records. more likely to be free of design errors than a prospective study. more likely to decrease recall bias errors than prospective studies. the best way to analytically test the hypothesis of cause and effect.You want to construct a data display for a frequency distribution. You will use a frequency polygon or bar chart. line graph or bar chart. line graph or histogram. frequency polygon or histogram