Question 1
A survey of 300 shoppers asked about their preferred product type. The results are organized by income level in the table below.
\[\begin{array}{|c|c|c|c|} \hline & \textbf{Store Brand} & \textbf{Name Brand} & \textbf{Total} \\ \hline \textbf{Under \$50k} & 90 & 60 & 150 \\ \textbf{\$50k and over} & 40 & 110 & 150 \\ \hline \textbf{Total} & 130 & 170 & 300 \\ \hline \end{array}\]
Given that a randomly selected shopper prefers name brand, what is the probability that the shopper earns $50,000 or more?