Concept explainers
Tocalculate:The
Answer to Problem 71E
The required probability is 0.7830.
Explanation of Solution
Given information:
The data:
Highest education | Total population | In labor force | Employed |
Didn’t finish high school | 27,669 | 12,470 | 11,408 |
High school but no college | 59,860 | 37,834 | 35,857 |
Less than bachelor’s degree | 47,556 | 34,439 | 32,977 |
College graduate | 51,582 | 40,390 | 39,293 |
Formula used:
The probability can be calculated by dividing the number of favorable outcomes by the number of possible outcomes.
If A and B are two events, then the conditional probability that
Calculation:
Know that probability can be calculated by dividing the number of favorable outcomes by the number of possible outcomes.
Now, the probability that he or she is in labor force and college graduate is,
The probability that he or she is a college graduate is,
Thus, the conditional probability that he or she is in labor force if he or she is a college graduate is,
Hence, the required probability is 0.7830.
Chapter 7 Solutions
The Practice of Statistics for AP - 4th Edition
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