In a group of 100 persons, 85 had Rh positive blood

Last updated: 7/10/2022

In a group of 100 persons, 85 had Rh positive blood (Rh factor present, Rh+), 45 had Type O blood, and 38 had both Type O and Rh positive blood. If one person had been selected at random from the group, what would the probability be: 1. that his blood type was Type O and Rh+? 2. that his blood type was not O? 3. that his blood type was Rh-? 4. that his blood type was Type O and Rh-? 5. that his blood type was Rh+? 6. that his blood type was not Type O or else was Rh+? 11/20 17/20 93/100 19/50 3/20 7/100