EM-2906

Independent events

E Math · Secondary 4 · Hard · Independent events

A bag contains 5 red balls, 7 blue balls and 3 green balls. One ball is drawn at random, replaced, and then a second ball is drawn. What is the probability that the first ball is blue and the second ball is not blue?

$\dfrac{7}{15}$
$\dfrac{8}{15}$
$\dfrac{56}{225}$
$\dfrac{49}{225}$

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