Answer:
Answer:
a. 16
b. 80
c. Blood type AB
Explanation:
Given:
O = 45%
A = 40%
B = 11%
AB = 4%
Total number of donors = 145
a. No. of donors that had type B blood Type B blood donors ≈ 16
b. No. of blood donors without blood type O Those without blood type O ≈ 80
c. Find the number of people that had type AB:
Type AB = 4/100 * 145=5.8 ≈ 6. This is less than 10 donors.
Therefore, blood type AB had less than 10 donors.