Concept explainers
a)
To find
a)
Answer to Problem 45E
The probability of type AB = 0.04
Explanation of Solution
Given:
Blood type: | O | A | B | AB |
Probability | 0.49 | 0.27 | 0.2 | ? |
The conditions of probability distribution are:
1)The probabilities should be
2)Sum of all the probabilities should be 1.
Using condition 2,
0.49+0.27+0.20+P(AB) = 1
P(AB)=1-0.96 = 0.04
b)
To find probability of not type AB.
b)
Answer to Problem 45E
The probability of not type AB = 0.96
Explanation of Solution
Given:
Blood type: | O | A | B | AB |
Probability | 0.49 | 0.27 | 0.2 | 0.04 |
Formula:
P(Ac)=1-P(A)
Using formula of complementary probability,
P(not AB) = 1-P(AB) = 1-0.04 = 0.96
c)
To find probability that randomly chosen black American donate blood to Maria.
c)
Answer to Problem 45E
The probability is 0.69
Explanation of Solution
Given:
Blood type: | O | A | B | AB |
Probability | 0.49 | 0.27 | 0.2 | 0.04 |
Formula:
Using formula,
Chapter 5 Solutions
The Practice of Statistics for AP - 4th Edition
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