0.45 0.40 0.11 This question uses the following probability model for the blood type of a randomly chosen person in the United States: Maria has type A blood. She can safely receive blood transfusions from people with blood types O and A. The probability that a randomly chosen American can donate blood to Maria is . (Give your answer to 2 decimal places.)

Step-by-step explanation:

Given

See attachment

Required

From the question, we understand that she can only get blood from O or A groups. So, the probability is represented as:

This is calculated as:

Using the American row i.e. the blood must come from an American.

We have:

So, we have:

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative