<prompt> The relative risk of 1 indicates thatThere is no cause effect relationshipEffect may be due to type 1 errorStrong correlationEffect may be due to type 2 error  <response>: Relative risk is the ratio of the incidence of the disease or death among exposed and the incidence among non-exposed. A relative risk of 1 means the incidence in exposed and non-exposed is same. So there is no relation between disease and cause exposure. Park, pg: 79 