week 3 Quiz QNT275

# week 3 Quiz QNT275

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Week 3 Quiz QNT/275 1: You randomly select two households and observe whether or not they own a telephone answering machine. Which of the following is a simple event? answer Exactly one of them owns a telephone answering machine. 2: Two mutually exclusive events answer cannot occur together 3: Two events are independent if the occurrence of one event Answer does not affect the probability of the occurrence of the other event 4: From the probabilities shown in this Venn diagram, determine the probability A does not occur. A B 0.02 0.22 Add 0.21 and 0.55 0.55 0.21 Answer 0.76 5: The following table lists the probability distribution of a discrete random variable x : x 0 1 2 3 4 5 6 7 P ( x ) 0.04 0.11 0.18 0.26 0.17 0.12 0.09 0.03 The probability of x=3 is: The probability that x is less than 5 is: 0.26 0.76

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The probability that x is greater than 3 is:
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