Concept explainers
To explain: It would be surprising if Patti earns a passing score of at least 6 correct answer. Also, compute the
Answer to Problem 2.3CYU
The probability is 0.0064.
Explanation of Solution
Given:
Number of questions = 10
Students are supposed to guess the answers.
X is a number of answers that Patti gives correct.
Formula used:
The
Calculation:
Now,
Thus, the required probability is 0.0064.
Conclusion:
Since, the probability is below 5%. Thus, it would be would be surprising if Patti earns a passing score of at least 6 correct answer.
Chapter 6 Solutions
The Practice of Statistics for AP - 4th Edition
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