Understanding Percentages in Surveys

The video tutorial explains how to determine the percentage of people who did not choose fluoride toothpaste based on a survey. It demonstrates two methods: converting a fraction to a decimal and then to a percentage, and using a traditional percent equation. Both methods yield the same result, showing that 37.5% of those surveyed did not choose fluoride toothpaste.

In a survey, how many people out of eight chose fluoride toothpaste?

• None

• Five

• Eight

• Three

What fraction represents the people who did not choose fluoride toothpaste?

• 1/4

• 3/8

• 5/8

• 1/2

How do you convert a fraction to a decimal?

• Subtract the denominator from the numerator

• Add the numerator and the denominator

• Divide the numerator by the denominator

• Multiply the numerator by the denominator

What is 0.375 as a percentage?

• 37.5%

• 375%

• 3.75%

• 0.375%

What is the first step in the traditional percent equation method?

• Multiply by 100

• Write the equation using keywords

• Convert the fraction to a decimal

• Subtract the numbers

In the equation '3 = 8p', what does 'p' represent?

• The number of people who chose fluoride toothpaste

• The percentage of people who did not choose fluoride toothpaste

• The total number of people surveyed

• The number of people who chose tarter control toothpaste

How do you solve for 'p' in the equation '3 = 8p'?

• Subtract 8 from both sides

• Divide both sides by 8

• Multiply both sides by 8

• Add 8 to both sides

What percentage of people did not choose fluoride toothpaste?

• 37.5%

• 62.5%

• 25%

• 50%

Which method confirms the percentage of people who did not choose fluoride toothpaste?

• Neither method

• Both methods

• Only the traditional percent equation method

• Only the fraction and decimal method

What is the main takeaway from the video tutorial?

• Surveys are unreliable

• Tarter control toothpaste is more popular

• Both methods give the same percentage result

• Fluoride toothpaste is more popular