Question

The blood types of 200 people are collected at a doctor’s office. The table shows the breakdown of patients by blood type.

If a person from this group is selected at random, what is the probability that this person has type AB blood? Express your answer as a fraction in lowest terms or as a decimal rounded to the nearest millionth (if necessary).

Blood Type Survey Results
Blood Type Number of Patients
A 45
B 65
O 75
AB 15

Answer 1

`(3)/(40)=0.075`

Explanation:

The probability of a person selected at random from this group having type AB blood is 15 out of 200 total people. Therefore:

`(15)/(200)=(3)/(40)=0.075=7.5\%`