Question

In a graph of 1,500 people, 585 has blood type A, 165 have blood type B, 690 have blood type O, and 60 have blood type AB. What is the probability that a person chosen at random from this group has type B blood?

A. P(B) = 4%


B. P(B) = 11%


C. P(B) = 39%


D. P(B) = 46%

Answer 1

B. P(B) = 11%

Explanation:

use the formula

`(outcomes)/(total)`

165 have blood type B (the outcome)

1500 is the total amount of people (the total)

P(group has type B blood)=
`(165)/(1500)`

= 11%

Answer 2

Ok, so we are finding probability so first, we need to know the specific categories we have to address. The question is asking about type B blood and we have 165 who have type B blood out of 1500. To find probability you need to divide the number of events, (in this case, blood types), by the number of possible outcomes. So 165/1500 is 0.11 which goes into 11% of a chance that a randomly pulled person will have type B blood! Hope I helped, if you have any questions, feel free to ask!