A marketing research firm gathered data from a recent survey that assessed consumer preferences among various brands of energy drinks. The companies X, Y, Z, and W were evaluated, and the results are summarized in the table below:
Brand Preferences Table:
Brand | Number of Respondents |
---|---|
X | 150 |
Y | 200 |
Z | 100 |
W | 250 |
Based on the survey, what percentage of respondents preferred either Brand Y or Brand W?