Exploring Associations in Categorical Data

What is the main focus of statistics in the context of this lesson?

• Understanding and quantifying variation in data

• Learning about geometric shapes

• Studying historical events

• Solving algebraic equations

In Julian's project, how many children did not buy a snack?

• 9

• 7

• 18

• 6

What is the overall relative frequency of buying a snack in Julian's survey?

• 0.72

• 0.68

• 0.60

• 0.33

What percentage of children bought a snack according to Julian's data?

• 60%

• 68%

• 40%

• 72%

In Harmony's survey, how many 6th graders preferred vanilla ice cream?

• 12

• 16

• 9

• 13

What percentage of 7th grade students preferred vanilla ice cream in Harmony's survey?

• 43%

• 59%

• 41%

• 57%

What does dividing by the column totals in Harmony's survey tell you?

• The overall preference for chocolate

• The total number of students surveyed

• The proportion of vanilla lovers in each grade

• The proportion of 6th graders who like vanilla

What is a conditional relative frequency?

• A historical event

• A proportion of a subgroup in a category

• A measure of central tendency

• A type of geometric shape

Why is it important to compare proportions in categorical data?

• To study historical events

• To draw geometric shapes

• To understand the likelihood of an event

• To solve algebraic equations

What can election coverage teach us about associations in categorical data?

• The likelihood of voting patterns based on demographics

• The study of geometric shapes

• The history of elections

• The importance of solving equations