Question

for the following pair of variables, state the units that might be used to measure each variable. then state whether you believe that they are correlated. if you believe they are correlated, state whether the correlation is positive or negative. explain your reasoning.

weight and how frequently a person attends rock concerts

to measure weight, the unit pounds might be used.
to measure the frequency a person attends rock concerts, the unit dropdown might be used.

dropdown options:
cubic feet
number of attendances
pounds
degrees of fahrenheit

Explanation:

Identify units for weight

Using the Units of Measurement knowledge point

• Weight is a measure of gravitational force on an object.
• Standard units for weight include pounds, kilograms, or ounces.
• The first blank is already filled with "pounds".

Identify units for concert frequency

Using the Units of Measurement knowledge point

• Frequency measures how often an event occurs over a period of time.
• Among the options (cubic feet, number of attendances, pounds, degrees of Fahrenheit), "number of attendances" (typically per year or month) is the only logical unit for measuring how often someone goes to concerts.

Analyze correlation between weight and concert attendance

Using the Correlation Analysis knowledge point

• Weight is a physical characteristic of a person.
• Attending rock concerts is a personal hobby or lifestyle choice.
• There is no biological, physical, or sociological mechanism linking a person's body weight to how frequently they attend rock concerts.
• Therefore, these two variables are not correlated.

Answer:

To measure the frequency a person attends rock concerts, the unit <blank>number of attendances</blank> might be used.