Jazmine surveys 120 adults on their preferred payment method when shopping. A partially filled two-way frequency
table representing her data is shown.
Preferred Payment Method
18- to 30-year-olds
31 years and older
Total
An app Cash or credit card Total
56
64
120
• 35 of the 18-to 30-year-olds prefer to pay with an app.
• 63 adults prefer to pay with cash or credit card.
Based on the results of Jazmine's survey, how many adults who are 31 years or older prefer to pay with an app?
