Question

The matrix shows the number of different types of coffee sold at a coffee shop.

Two by four matrix

What percent of medium coffees sold were not caffeinated?

Responses

88%

88%

50%

50%

67%

67%

44%

44%

Answer 1

I can’t see the matrix — could you either paste the numbers (or upload the image)?

To solve it yourself: take the number of medium coffees that were not caffeinated, divide by the total number of medium coffees (caffeinated + not caffeinated), and multiply by 100. For example, if there were 8 decaf medium and 4 caffeinated medium, percent not caffeinated = 8/(8+4)×100 = 67%.