Question

question #3
a swimming pool is filled with water. if not rounded to the nearest gallon, the amount of water it takes to fill a swimming pool is an example of a _ variable.
categorical
discrete
continuous
bimodal
question #4
determine if the following scenario is best described as an observational study, survey, or experiment.
in order to determine the preferred soft drink among 100 people, they were asked to answer questions pertaining to their favorite drink.
observational study
survey
experimental study

Explanation:

• Question 3:
• A categorical variable represents types or categories.
• A discrete variable has distinct, separate values (e.g., number of students).
• A continuous variable can take any value within a range (e.g., height, amount of water which can be any value like \(3.14\) gallons, \(5.678\) gallons etc. when not rounded).
• A bimodal variable has two modes (most - frequent values).
• Question 4:
• An observational study observes without interfering.
• A survey collects data by asking questions. Here, people are asked questions about their preferred soft - drink.
• An experimental study manipulates variables.

Answer:

• Question 3: continuous
• Question 4: Survey