Statıstıcs I Deneme Sınavı Sorusu #822437

At a local district, there are three d­ifferent pizza restaurants denoted here by A, B, and C. It is known that 40% of all customers give an order from company A, whereas 35% give an order from company B, and 25% give an order from company C. It is also known that 10% of the motorcycles from company A, 20% of the motorcycles from company B, and 5% of the motorcycles from company C need to a checkup before the next pizza delivery. What is the probability that a motorcycle returned to the restaurant needs a checkup before the next pizza delivery?


0,12

0,14

0,16

0,18

0,20


Yanıt Açıklaması:

P(A)=0.40  P(U/A)=0.10  P(U/A).P(A)=0.04

P(B)=0.35  P(U/B)=0.20  P(U/B).P(B)=0.07

P(C)=0.25  P(U/C)=0.05  P(U/C).P(C)=0.0125

P(U)=0,04+0,07+0,0125=0,12

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