In a sample survey of 645 people, it was found that 516 people have a high school certificate. If a person is chosen at random, what is the probability that he / she has a high school certificate?(a) 12(b) 35(c) 710(d) 45

In a sample survey of 645 people, it was found that 516 people have a

1.	In a sample survey of 645 people, it was found that 516 people have a high school certificate. If a person is chosen at random, what is the probability that he / she has a high school certificate?(a) 12(b) 35(c) 710(d) 45
Answer» In a sample survey of 645 people, it was found that 516 people have a high school certificate. If a person is chosen at random, what is the probability that he / she has a high school certificate? (a) $\frac{1}{2}$ (b) $\frac{3}{5}$ (c) $\frac{7}{10}$ (d) $\frac{4}{5}$