1.1 Lesson Quickcheck

You are thinking about purchasing a new laptop. This is a major decision, and you want to do a little research before you purchase anything. You go online and research 10 specific laptop models. For each laptop, you record its brand, screen size in inches, price in dollars, and whether it comes with a warranty or not. Identify the individuals in your dataset.

• The 10 laptops you researched

• The screen sizes of the laptops

• Every possible laptop for sale

• The prices of the laptops

You are considering purchasing a new car. To make an informed decision, you research 12 car models, recording their brand, fuel efficiency in miles per gallon, price in dollars, and whether they have a sunroof. Identify the individuals in your dataset.

• The prices of the cars

• The fuel efficiency of the cars

• The 12 cars you researched

• All cars available for purchase

You are thinking about purchasing a new laptop. This is a major decision, and you want to do a little research before you purchase anything. You go online and research 10 specific laptop models. For each laptop, you record its brand, screen size in inches, price in dollars, and whether it comes with a warranty or not. Identify the categorical variable(s) associated with your dataset.

• Screen Size (inches)

• Brand

• Warranty or Not

• Price (dollars)

You are considering purchasing a new car. To make an informed decision, you research 12 car models, recording their brand, fuel efficiency in miles per gallon, price in dollars, and whether they have a sunroof. Identify the quantitative variables(s) associated with your dataset.

• Fuel Efficiency

• Sunroof or not

• Brand

• Price (dollars)

After constructing your own frequency table for this scenario, what is the frequency of Dark Brown coats in the horses?

• 5

• 7

• 9

• 10

After constructing your own relative frequency table for this scenario, what is the relative frequency of white coats in the horses?

• 5/30 or 16.67%

• 7/30 or 23.33%

• 9/30 or 30%

• 10/30 or 33.33%