Concept explainers
(a)
To explain how many of the mathematics degrees given in this year were earned by women.
(a)
Answer to Problem 31E
Explanation of Solution
It is given in the question the following information as:
Thus we need to find the probabilities as:
Therefore, add the corresponding probabilities to get:
In total there are
Thus,
(b)
To explain are the
(b)
Answer to Problem 31E
They are not independent.
Explanation of Solution
It is given in the question the following information as:
Thus, we need to find the probabilities as:
Therefore, add the corresponding probabilities to get:
Since the probabilities
(c)
To find out what is the probability that at least
(c)
Answer to Problem 31E
Explanation of Solution
It is given in the question the following information as:
And
And from the multiplication rule we have to find out the probability of obtaining two individuals who earned a degree but are not women as:
Now, using the complement rule, we can then find out the probability of at least one degree by women as:
Chapter 9 Solutions
The Practice of Statistics for AP - 4th Edition
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