Question

1. the blood types of 150 people were determined for a study as shown in the figure below.

if 1 person from this study is randomly selected, what is the probability that this person has either type a or type ab blood?
a. \\(\frac{62}{150}\\)
b. \\(\frac{66}{150}\\)
c. \\(\frac{68}{150}\\)
d. \\(\frac{73}{150}\\)
e. \\(\frac{84}{150}\\)

Explanation:

Step1: Count total people with A/AB

$67 + 6 = 73$

Step2: Calculate probability

$\frac{\text{Number of A/AB people}}{\text{Total people}} = \frac{73}{150}$

Answer:

D. $\frac{73}{150}$