What is wrong with the statements

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1. Suppose your instructor wants to randomly choose one of the students in the class to ask a question. Suppose the probability that the instructor asks Sam, one of your classmates, is 0.05 and the probability that she/he asks John, another student in your class, is 0.07. What is the probability that the instructor asks one of these two students (assuming independence between these events)?

2. What is wrong with the following statements? Explain your answer.

a. The probability that a student misses a class is 0.04 and the probability that he attends the class is 0.9

b. P (A and B) = -0.2

c. P (complement of A) = 0.7 given that P(A) = 0.7

Reference no: EM132970340

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