What is the probability of selecting a boy or a blonde-haired person from 12 girls, 5 of whom have blonde-haired and 15 boys, 6 of whom have blonde-haired

Answer: 20/27

Step-by-step explanation:

So it is non - mutually exclusive;

Let B for the boys and H for the blond hair.

P (B) = 15/27; P (H) 11/27; P (B and H) = 6/27

Then, we have,

P (B or H) = 15/27 + 11/27 - 6/27

P (B or H) = 20/27

Therefore, the probability of selecting a boy or a blond-haired person is 20/27.