Concept explainers
a.
To find:the percentage of the entire population of being lactose intolerant.
a.
Answer to Problem 97E
The percentage of the entire population of being lactose intolerant is
Explanation of Solution
Given:
Concept used:
Multiplication rule
Calculation:
According to question:
Now, to find the probability of being lactose intolerant for each group:
Add the corresponding probabilities:
Hence, the percentage of the entire population of being lactose intolerant is
b.
To find: the percentage of people whose are lactose intolerant are Asian.
b.
Answer to Problem 97E
Explanation of Solution
Given:
Concept used:
Definition conditional probability:
Calculation:
From part (a):
Definition conditional probability:
Thus obtained:
Hence,the percentage of people whose are lactose intolerant are Asian is
Chapter 5 Solutions
The Practice of Statistics for AP - 4th Edition
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