TPS6e Unit 1c1

Which one is a categorical variable?

• Age

• Gender

• Height

• Income

Answer explanation

A categorical variable is a variable that can be divided into several categories but having no order or priority. This includes variables like color, type, group, class etc. 'Gender' is an example of this since it can be categorized into 'male', 'female', and 'non-binary'. Options like 'Age', 'Height' and 'Income' are numerical, not categorical.

What are the individuals in this data set?

• The programs

• The customers

• The goals

• Goal B

• Goal A

Organize variables by their type

Groups:

(a) Categorical

,

(b) Quantitative Discrete

,

(c) Quantitative Continuous

• Income

• Height

• Number of pregnancies

• Number of AP classes

• Time travelled

• Subject

• Education level

• Car Model

• Temperature

• Fuel efficiency

• Gender

• Number of tires sold

• Race

• Age (in whole years)

What is misleading about this bar graph?

• It should be a histogram

• The axes are not labeled

• The y-axis doesn't start at zero

• The graph is using pictograms

• The variable is quantitative, not categorical

Match the following

• Unimodal, right skew

• 
• Uniform

• 
• Unimodal, left skew

• 
• Bimodal

• 
• Unimodal, symmetric

• 

What proportion of people viewed Version 1 and are likely to buy?

What proportion of people viewed Version 1?

What proportion of people are likely to buy?

What proportion of those who viewed Version 1 are likely to buy?

What proportion of those who are likely to buy viewed Version 1?