Here is the probability model for the blood type of a randomly chosen person in the United States.

Blood type O A B AB
Probability 0.53 0.21 0.03 0.23

What is the probability that a randomly chosen American does not have type O blood?
% Round to the nearest 0.01%

Thanks

This is wrong

Well, the probability that a randomly chosen American does not have type O blood can be calculated by subtracting the probability of having type O blood from 100%. So, here's the math:

100% - 0.53% = 99.47%

Therefore, the probability that a randomly chosen American does not have type O blood is approximately 99.47%. But remember, humor may not always be 100% accurate, just like my blood type calculations!

To find the probability that a randomly chosen American does not have type O blood, you need to calculate the complement of the probability that the person has type O blood.

The complement of an event A represents all the outcomes that are not in A. In this case, A is the event of having type O blood.

To find the complement of an event, subtract the probability of the event from 1.

Given that the probability of having type O blood is 0.53, we can find the probability of not having type O blood by subtracting 0.53 from 1:

Probability of not having type O blood = 1 - Probability of having type O blood = 1 - 0.53 = 0.47

To express this probability as a percentage, multiply it by 100:

Probability as a percentage = 0.47 * 100 = 47%

Therefore, the probability that a randomly chosen American does not have type O blood is approximately 47% (rounded to the nearest 0.01%).

Stop putting extra stuff in the Subject box. It's childish and not needed.

first add those up to see if they add to one

Yes, they do so everyone has one of those 4 types
THEREFORE
probability not O = 1 - probability of O
1 - .53 = 0.47