Statıstıcs I Deneme Sınavı Sorusu #821073
A manager in a company has two assistant directors. The probability that the older assistant director comes late to work on a given day is 0.07, whereas for the younger assistant director this probability is 0.05. In addition, the probability that both assistant directors come late to work on given day is 0.03. What is the probability that on a given day one or both assistant directors come late to work?
|
0.87 |
|
0.97 |
|
1.07 |
|
1.17 |
|
1.27 |
Yanıt Açıklaması:
Note that this event corresponds to (O+Y –) , ( – O+Y – ) , ( – O+Y – ), and that (O+Y –) , ( – O+Y – ) , ( – O+Y – ) , (O+Y ) = S.
Therefore, P((O+Y – ) , ( – O+Y –) , ( –O+Y–)) = 1 – P(O+Y– ) = 1 – 0.03 = 0.97 The correct answer is B.
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