Understanding Protractor Usage and Pie Charts

This video tutorial explains how to draw a pie chart from a given set of data. It covers calculating the total number of survey participants, determining the degrees per person, filling out the degrees column, verifying calculations, and finally, drawing the pie chart step-by-step. The tutorial emphasizes accuracy in calculations and provides tips for using a protractor correctly.

What is the first step in creating a pie chart from data?

• Label the sections of the pie chart

• Determine the degrees per person

• Draw the circle for the pie chart

• Calculate the total number of participants

How do you find out how many people participated in the survey?

• By measuring the angles with a protractor

• By dividing the total degrees by 360

• By adding up the frequency column

• By counting the number of sections in the pie chart

What is the total number of participants in the survey?

• 25

• 20

• 30

• 35

How do you calculate the degrees per person for the pie chart?

• Divide 360 by the total number of participants

• Subtract the total degrees from 360

• Multiply the total participants by 360

• Add the frequencies together

What is the degrees per person if there are 30 participants?

• 15 degrees

• 12 degrees

• 10 degrees

• 18 degrees

What should you do if the exam question does not provide a degrees column?

• Use a calculator to find the degrees

• Estimate the degrees

• Skip the question

• Draw the degrees column yourself

How do you fill out the degrees column?

• By dividing the frequency by the total degrees

• By adding the frequency to the degrees per person

• By guessing the degrees

• By multiplying the frequency by the degrees per person

What is the degree value for a frequency of 6?

• 72 degrees

• 60 degrees

• 96 degrees

• 84 degrees

Why is it important to verify the total degrees add up to 360?

• To ensure the pie chart is colorful

• To confirm the calculations are correct

• To make the pie chart look symmetrical

• To avoid using a protractor

What should the total degrees add up to in a pie chart?

• 360 degrees

• 180 degrees

• 450 degrees

• 270 degrees