Concept explainers
To calculate:
Probability of student guessing answers correctly.
Answer to Problem 11E
The probability of the event that a student will give both correct answers would be
Explanation of Solution
Given information:
Statement: The student can either guess two incorrect answers, two correct answers, or one of each. So the probability of guessing both answers correctly is
Calculation:
The question is related to the favorable event.
Event considered as student will give both answers correctly.
Possible events which can be obtained from the random experiment of giving answer to two true and false questions are as below:
Thus, two cases have to be treated differently.
Hence, the probability of the event that a student will give both correct answers would be
So, error observed in result of the given statement as probability of the event is
Chapter 10 Solutions
Big Ideas Math A Bridge To Success Algebra 2: Student Edition 2015
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