<prompt> Relative risk is defined as-Incidence of disease among exposed minus incidence of disease among non-exposedIncidence of disease among non-exposed minus incidence of disease among exposedIncidence of disease among non-exposed divided by incidence among exposedIncidence of disease among exposed divided by incidence among non-exposed  <response>: Ans. is d i.e., Incidence of disease among exposed divided by incidence among non-exposed Relative risk is the ratio of the incidence of the disease or death among exposed and the incidence among nonexposed.RR Incidence of disease among exposed---Incidence of disease among nonexposed 