Pie charts are used to measure the proportion of the elements in a dataset. In other words, we may say that a donut chart is a superset of a pie chart. Named after a donut due to its resemblance to one, a donut chart helps to collect more complex data than a pie chart. Solution: Pepperoni has the lowest daily order, and is exploded in the graph below. The first chart should emphasize the pizza with the highest daily orders, while the second chart should emphasize the pizza with the lowest daily orders. Mushroom: Mushroom (degrees) = Mushroom order100360Įxample 4: Construct two exploded pie charts from the information in Example 1 above. Vegetarian: Vegetarian (degrees) = Vegetarian order100360 Pepperoni: Pepperoni (degrees)= pepperoni order100360Ĭhicken: Chicken (degrees) = Chicken order100360 Hence the degrees of the sector represented by each pizza on the chart is calculated below: Mushroom: Mushroom orders = Percentage Mushroom order100Total number of pizza Vegetarian: Vegetarian orders = Percentage Vegetarian order100Total number of pizza Pepperoni: Pepperoni orders = Percentage pepperoni order100Total number of pizzaīeef: Beef orders = Percentage Beef order100Total number of pizzaĬhicken: Chicken orders = Percentage Chicken order100Total number of pizza Solution: The average number of pizzas ordered daily for each variety of pizza is calculated below Hence, use this information to calculate the degrees of the sector occupied by each pizza variety on the chart. If the average total number of pizzas ordered daily is 100, determine the average number of pizzas ordered for each variety of pizza. The results of this survey are shown in the table below.
The government is trying to evacuate the animals and move them to the zoo.Ī survey was therefore carried out to determine the number and demography of animals living in this community. Orange: (166.7360)1175 =544 Pie Chart Question Examples and AnswersĮxample 2: A community has been deserted for years and has become occupied by various kinds of animals. Then, the value is calculated using this formula: To calculate the value of each pie on the chart, all you need is the total number of values in the chart, and the degrees or percentage occupied by the pies. Step 4: Draw a circle and draw the degrees using a protractor.Ĭonversely, if you are reading a pie chart and want to know the values of each pie represented on the chart, follow these simple steps. Step 3: We calculate the degrees of each color in the box of balls using the formula above. Step 2: We calculate the percentage of each color in the box of balls using the formula above. Step 1: We add the frequency values together to get the total frequency. We will now calculate the percentage and degrees covered by each of the colors in the following simple steps. To better explain the calculations involved in a pie chart, let us consider the example 1 above. To determine how many degrees should be covered by each pie sector, we use the following formula:ĭegree of each value =(ValueTotal value)360Īfter calculating the degrees covered by each pie, we can construct the pie chart by using a compass to draw the circle, and a contractor to measure the degrees covered by each component from the center point. Percentage of each value =(ValueTotal value)100 When visualizing a dataset using percentage, the percentage of each value is calculated using the following formula: The portions that exist in the pie are measured as an angle of the total 360 degrees.ĭata can be visualized on a pie chart in degrees or percentages.
The entire pie represents 100% of the dataset, while each sector/pie slices represents a portion of the whole dataset. In other words, the pie is divided into different slices, with each slice representing the frequency of the processes in the dataset. What is a Pie Chart?Ī pie chart is a circular graph divided into various sectors to illustrate numerical proportions.
HOW TO CREATE PIE CHART IN EXCEL FROM SURVEY HOW TO
However, the amazing part is that you can enjoy multiple pizza slices while you learn about pie charts and how to create one using Excel. Unfortunately, the rest of this article may not necessarily have anything to do with pies or pizza slices. Originally created by William Playfair, this data visualization method is widely used in business and mass media. The pie chart is a graph named after a sliced pie, due to their semblance to each other. This is most likely going to be where your train of thoughts will go if you are not a data analyst, statistician, or mathematician. When you hear the word pie, the first thing that will probably come to your mind is a pizza slice, snack, or pie - literally everything else asides from a pie chart.