Marie has a bag containing various coloured balls.
Marie grabs a coloured ball from the bag and records the colour.
She then puts the ball back into the bag and repeats this process a number of times.
\begin{array} {|c|c|}
\hline
\rule{0pt}{2.5ex} \text{Orange} \rule[-1ex]{0pt}{0pt} & \ \ \text{Blue}\ \ \rule[-1ex]{0pt}{0pt} & \ \ \text{Red}\ \ \rule[-1ex]{0pt}{0pt} & \text{Green} \rule[-1ex]{0pt}{0pt} \ & \text{White} \rule[-1ex]{0pt}{0pt} & \text{Black} \rule[-1ex]{0pt}{0pt} & \text{Yellow} \rule[-1ex]{0pt}{0pt} \\
\hline
13 & 20 & 18 & 9 & 12 & 14 & 10\\
\hline
\end{array}
Using the table, what is the probability that the next ball picked out by Marie will be yellow? (2 marks)
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