The percentage of all customers prefer port drink and tea is 17.55%. The result is obtained by multiplying the two percentages of the data.
We have a number of customers.
Of all customers, find the percentage that they prefer port drink and tea!
If 55% prefer soda over port drink, then the ones who prefer port drink is
100% - 55% = 45%
Of the customers who prefer port drink, 61% prefer coffee over tea. So, the ones who prefer tea is
100% - 61% = 39%
From that information, we can get the ones who prefer port drink and tea. Let's say pt = port drink and tea.
pt = 39% × 45%
pt = 0.39 × 0.45
pt = 0.1755
pt = 17.55%
Hence, of all customers, the percentage who prefer port drink and tea is 17.55%.
Learn more about calculating the percentage here:
brainly.com/question/29194284
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