The probability that a teacher will give one surprise test during any class meeting in a week is 1/5. If a student is absent twice. What is the probability that he will miss at least one test?
Correct Answer: 1/15
Explanation:
The probability of absenting of the students in the class = 2/6 = 1/3
∴ The probability of missing his test = 1/5 x 1/3 = 1/15
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