Exam 1: Defining and Collecting Data

SCENARIO 1-2 A Wall Street Journal poll asked 2,150 adults in the U.S.a series of questions to find out their view on the U.S.economy. -Referring to Scenario 1-2,the possible responses to the question "On the scale of 1 to 100 with 1 being extremely anxious and 100 being totally not anxious,rate your level of anxiety in this U.S.economy?" results in

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance.The number of tickets a person has received in the last 3 years is an example of a numerical variable.

The grade level (K-12)of a student is an example of a numerical variable.

Which of the following sampling methods will more likely be susceptible to ethical violation when used to form conclusions about the entire population?