We need the exact same type of Venn Diagram as for Question 1. Some working out steps to get to the final completed diagram. This is a harder version of Problem One, where we are given less The following diagram is also correct and a fully acceptable answer. Note that we do not need to color in and fill in the circles on Venn Diagrams. The completed Venn Diagram is shown below. We also need to check that all of the numbers add up to the total of 40 students when we are finished. This three circle word problem is an easy one.Īll of the number values for each section of the diagram have been given to us in the question.Īll we need to do is carefully put the number values onto the Diagram.
The type of three circle Venn Diagram we will need is the following: Represent these results using a three circle Venn Diagram.” Everyone liked at least one pet.ġ0 students liked Cats and Birds but not dogsĦ students liked Cats and Dogs but not birdsĢ students liked Dogs and Birds but not Cats “A Class of 40 students completed a survey on what pets they like. This first problem is a fairly easy one, where all of the information we need has been given to us in the question. There are 8 people who like all three types of music. We can find the number of people who like all three types of music, by going to the centre of our diagram, where all three circles overlap. So if we pick any one person at random from our group, the chances, or odds, or probability, that they will like Rock music is 31 out of 70, or 31 / 70, or 31/70 x100 = 44%. We can also work out Probability or Odds from our Venn Diagram.įor example we have found that 31 people out of 70 like Rock Music. The Total Rock People is: 16 + 2 + 8 + 5 = 31 people.
If we want to find the total number of people who like “Rock” music, then we add up all of the numbers in the “Rock” circle, including the areas where “Rock” overlaps with the other circles. This “E = Everything value” is also called “The Universal Set” of everything in the universe of our diagram. To find out the total number of people surveyed, (or the E = Everything value), we add up all the numbers in the diagram. Image Source: Passy’s World of Mathematics The results were placed into the following three circle Venn Diagram. We then look at some word problems.Ī Music Survey was carried out to find out what types of music a group of people liked. In this lesson we first look at how to read three circle diagrams. Three circle Venn Diagrams are a step up in complexity from two circle diagrams. Image Source: istockphoto Purchased by Passy’s World
0 kommentar(er)
