How To Find The Average
Question
The average is the number that can replace all your values and still
00:00
00:00
Here, we're going to talk about how to find the average. Now, it's very important to remember that there are many types of average. There's the mean, mode and the median. But when most people talk about averages, they're really talking about the mean. Let's look at an example. Picture yourself in a market bargaining over solid gold bars. The shopkeeper offers you the following weights. No, no, no, you argue. Although you're happy with a total of 12 kilograms of gold, you want all three pieces to weigh the same. So how much should each piece weigh? To answer that question, we have to work out the mean. To work out the mean, first add up all the weights. Second, work out how many items we're dealing with. In this case, we've got three gold bars so it's simply three. Third, divide the sum by the number of items. In this case, we get 4 kilograms. This is the average weight of the three gold bars. If the shopkeeper brought out three gold bars weighing 4 kilograms each, you would end up with a total of 12 kilograms, which is the same as before. This example shows another way of looking at the average. It is the number that can replace all of your values and still add up to the same sum. And that's how to find the average. .