I have to put these estimates on a circle graph. These are estimated deaths in canada in 1996. Do I add them all up first then divide them by the answer?
murders 510
alchcol 1900
car accidents 2900
suicides-3900
Tobacco 45,000
Yes, that's correct.
After you've divided by the sum, you have a fraction, which you then multiply by 360° to get the angle in degrees.
A useful approach is to take a simpler case
Suppose there were just 5 by murders, 30 by accidents, and 65 by tobacco
How many would all the deaths add up to?
What proportion of all deaths would be by tobacco?
So there were 100 deaths, 65 by tobacco
So tobacco would be 65% of all deaths, and would cover 65% of the full circle
Then (65/100) * 360 degrees gives you the angle
So yes, the first step is adding them up, and then seeing what proportion of the total each is, and then working out the angle
is this correct for murders? (510/54120)*360=3.4
Ayup! 54120 total deaths 510 from murder will be represented by about 3.4 degrees of the circle
alcohol 13%
Car Acc. 19%
suicides 25%
Tobacco 300%
Are these right?
The numbers are close, but not exact since for example alcohol is about 12.6 rather than 13, but yes, you've clearly got it - but be careful; those numbers are degrees, not percent
Alcohol is about 3.5%, and that makes about 12.6 degrees of a circle
so murder perentage is .94% and 3.4 degree of the circle.
So when doing the pie graph I put the percentage on the pie graph?
How you present the pie chart is kind of up to you, unless you were given specific instructions. You could put the numbers of deaths, or the percentages, or both.
Apparently I can't put a link here, but if you go to the Wikipedia page Pie_chart you will see typical examples.
To create a circle graph, also known as a pie chart, you need to show the proportions or percentages of each category. You do not need to add up the numbers and divide by the answer. Here's how you can create a circle graph using the estimated deaths in Canada in 1996:
Step 1: Calculate the total number of estimated deaths in 1996:
Total estimated deaths = murders + alcohol + car accidents + suicides + tobacco
Total estimated deaths = 510 + 1900 + 2900 + 3900 + 45000
Step 2: Calculate the percentage of each category:
Percentage of murders = (murders / total estimated deaths) x 100
Percentage of alcohol-related deaths = (alcohol / total estimated deaths) x 100
Percentage of car accident-related deaths = (car accidents / total estimated deaths) x 100
Percentage of suicides = (suicides / total estimated deaths) x 100
Percentage of tobacco-related deaths = (tobacco / total estimated deaths) x 100
Step 3: Draw a circle representing the whole or 100%. Divide it into sections for each category based on their respective percentages.
For example, let's say the total estimated deaths is 50,210. Then, the calculations for the percentages would be:
Percentage of murders = (510 / 50210) x 100 ≈ 1.01%
Percentage of alcohol-related deaths = (1900 / 50210) x 100 ≈ 3.78%
Percentage of car accident-related deaths = (2900 / 50210) x 100 ≈ 5.78%
Percentage of suicides = (3900 / 50210) x 100 ≈ 7.77%
Percentage of tobacco-related deaths = (45000 / 50210) x 100 ≈ 89.65%
Step 4: Using a protractor or any suitable tool, draw the corresponding angles for each category based on their percentages.
Step 5: Label each section of the circle graph with the name of its category (murders, alcohol-related deaths, car accidents, suicides, and tobacco-related deaths).
Step 6: You can also add a legend or key to your circle graph, explaining what each section represents.
Remember to choose appropriate colors for each category and include a title for your graph to make it clear and visually appealing.