Data Analysis and Frequency Concepts

The video tutorial by Miss Lee introduces the concept of relative frequency and its application in analyzing categorical data. It explains how to calculate relative frequency using examples, such as survey data on favorite sports and university choices. The tutorial also covers evaluating true or false statements based on data, analyzing book reading data for mode and percent, and determining marble color percentages. The video concludes with instructions for independent practice on data analysis.

What type of data is described by characteristics such as eye color or favorite music?

• Numerical data

• Continuous data

• Quantitative data

• Categorical data

How is relative frequency typically expressed?

• As a whole number

• As a fraction, percent, or decimal

• As a logarithm

• As a complex number

If 6 out of 24 orders are for pepperoni pizza, what is the relative frequency of pepperoni pizza orders?

• 1/6

• 1/3

• 1/2

• 1/4

In a survey, 5 out of 25 students chose basketball as their favorite sport. What is the relative frequency of basketball?

• 30%

• 10%

• 20%

• 25%

What is the scale factor used to convert a fraction with a denominator of 25 to a percentage?

• Multiply by 3

• Multiply by 4

• Multiply by 2

• Multiply by 5

Which university had the highest percentage of students choosing it as their preferred university?

• University of Texas

• Texas A&M

• Baylor

• Texas Tech

If 30% of students chose Texas A&M, how many students does this represent out of a total of 20?

• 4

• 5

• 6

• 7

What is the mode in a dataset?

• The average value

• The middle value

• The most frequently occurring value

• The least frequently occurring value

If 15% of students chose Texas Tech, what percentage did not choose it?

• 90%

• 85%

• 80%

• 75%

In a class survey, 90 out of 500 books were read by class two. What percentage does this represent?

• 16%

• 18%

• 20%

• 22%