Statıstıcs I Deneme Sınavı Sorusu #851380

There are 36 cards in a box with three different colors-6 yellow, 12 blue, 18 red. What is the probability of obtaining two yellow cards when randomly drawing two cards? 


 1/42= 0.02381 
 5/216 = 0.02315 
 1/35 = 0.02857 
 4/35 = 0.11429 
 9/35 = 0.25714 

Yanıt Açıklaması:

This is how we formulate the probability: P(A1? A2 ) = P(A2|A1 )P(A1 ) = P(A1 )P(A2|A1 ) 

This is how we calculate the probability of drawing two yellow cards: 6/36.5/35=1/42= 0.02381

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