Answer
$P(B \ | A)=\dfrac{12}{49}$
Work Step by Step
Let us consider that $A$ denotes sold in the year ending February 28, 2011 and $B$ denotes took place in west.
Thus, we can find the probability as:
$P(B \ | A)=\dfrac{1.2}{4.9}=\dfrac{12}{49}$
