Question

use the drop - down menus to identify the method used to collect data for each scenario. daniel used the internet to research the number of tornadoes reported in the united states each year for the past 10 years. mia asked 20 random students at her school how many hours they spend on the computer each day. beatriz recorded the number of customers entering a store for each hour interval.

Explanation:

• Daniel is gathering existing data from the Internet, which is data - collection through research. This is similar to an observational study where data already exists and is being observed.
• Mia is asking students a question, which is a typical survey method as she is collecting data by asking individuals about their behavior.
• Beatriz is recording the number of customers entering a store over time without interfering, which is an observational study as she is simply observing and recording a phenomenon.

Answer:

• Daniel: observational study
• Mia: survey
• Beatriz: observational study