Calculating Percentages from Two Way Tables

This video tutorial explains how to calculate percentages using a two-way table. It begins with an introduction to the concept of percentages, emphasizing the formula of part divided by whole. The tutorial provides examples, such as calculating the percentage of green tally marks and determining the percentage of males who like country music. It also covers how to find the percentage of people surveyed who like country music and the percentage of males who prefer rock music. The video concludes by identifying the most popular music genres among males and females.

What is the formula to calculate a percentage?

• Whole divided by part

• Whole plus part

• Part divided by whole multiplied by 100

• Part plus whole multiplied by 100

If 106 out of 251 people like country music, what percentage does that represent?

• 42%

• 31%

• 52%

• 25%

How many people were surveyed to find out their music preferences?

• 1015

• 498

• 251

• 152

How many people surveyed liked country music?

• 106

• 251

• 498

• 152

What percentage of the surveyed people like country music?

• 24%

• 25%

• 42%

• 49%

Out of the surveyed individuals, what percentage were male?

• 31%

• 25%

• 42%

• 49%

What is the correct way to round off 0.247 to a percentage?

• 24%

• 23%

• 22%

• 25%

What was the total number of males surveyed?

• 251

• 498

• 106

• 152

What percentage of males like rock music?

• 31%

• 42%

• 25%

• 49%

Which genre of music had the highest percentage of male fans?

• Rap

• Country

• Rock

• Pop