The blood types of 150 people are determined for a study. The results show that 62 people have Type O blood, 67 have Type A blood, 15 have Type B blood, and the others have Type AB blood. If 1 person from this study is randomly selected, what is the probability that this person has either Type O or Type AB blood?

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There are 150 people in total. We can find the number of people with Type AB blood:

$$150 = 62+67+15+ \text{Type AB blood}$$ $$6 = \text{Type AB blood}$$

Probability of Type O or Type AB:

$$\frac{\text{Type O} + \text{Type AB}}{\text{Total}} = \frac{62 + 6}{150}$$ $$= \frac{68}{150} = \frac{34}{75}$$