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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%

In a graph of 1,500 people, 585 has blood type A, 165 have blood type B, 690 have-example-1
User Jissell
by
7.9k points

2 Answers

4 votes

Answer:

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%

User Mrmclovin
by
8.1k points
4 votes
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!
User RealAlexBarge
by
8.4k points
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