Question

Betty is allergic to milk products. She discovers that 40% of the food items available in the school cafeteria contain milk products. She wants to know the odds of the cafeteria serving three meals in a row containing milk products so she can decide whether she should bring lunch from home. How can she simulate this situation to find the relative frequency?

Answer 1

The ratio of food items containing milk products to those without milk is 40:60 or 2:3. So Betty's simulation should have a multiple of 5 possible outcomes. She can model this situation using a 5-section spinner with 2 sections representing items containing milk and three sections representing items without milk. To find the odds of the cafeteria serving 3 meals in a row containing milk, spin the spinner 3 times. If all 3 spins land on sections representing food items that contain milk, it would mean the cafeteria would serve 3 meals in a row containing milk. To find the relative frequency of the event, Betty needs to perform the simulation multiple times.

Explanation: