Concept explainers
To find: that at least 1 of them is a universal donor.
Answer to Problem 91E
Explanation of Solution
Given:
As person with O-negative blood are universal donors, 7.2% of American population have O-negative blood.
Concept used:
Multiplication rule
Complement rule:
Calculation:
Complement rule:
Apply complement rule to find the probability of not having type O:
Multiplication rule:
Apply multiplication rule to find the probability of 10 people not having type O:
Use the complement rule to obtain the probability of obtaining at least one person with type O:
Chapter 5 Solutions
The Practice of Statistics for AP - 4th Edition
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