If the mean was used to summarise the data, the outlier close outlier A value that is an unusual result that lies well beyond the rest of the data. It might be a height that has been measured or written incorrectly, or it could just be a value that is different to the others in the set.Īn average is meant to reflect a typical value. If there are two middle numbers, the median is the mean of those two numbers.Ģ32 cm is much higher than the other heights, and is an outlier close outlier A value that is an unusual result that lies well beyond the rest of the data. The best average to use would be the median close median A type of average calculated by finding the middle value of a set of numbers in ascending order. So, you might see an average of goals scored, assists, minutes played, but you might see it in off-the-pitch stuff as well, such as the finances and the money that comes into your sports club. Steph: All over sports, particularly on the data side. So, is it the first ten minutes, the last ten minutes or somewhere in between? Then if you know your opponent will be looking to attack then, you can better defend against them.īobby: Where else might you see averages? Steph: Yeah, you might use the mode, for example, in a football game, to see when a goal is most likely to be scored. Steph: Not so much in scoring, but you might use it, for example, if you have a football team and you want to see what the average height is, and you don’t want the shortest player on the team and the tallest player on the team, maybe your goalkeeper, todistort that, you might look at the middle point to choose the average height there.īobby: Would you ever use the mode, which is where you look at the most common piece of data? And then the average of those scores is calculated to come up with the final score for the gymnast.īobby: Ah, so that’s the mean average, and let’s say we were thinking about the median average where we look at the middle value of a set of data. So with football, for example, you would take how many goals were scored but in gymnastics, the gymnast would do a routine and then there are a number of judges that will give that routine a score. Steph: So, one thing I learned is that sports have different scoring systems. And then I got into watching sports in my local area and on TV, where I watched things like the Football World Cup and the Olympics.īobby: What did you learn from watching things like the Olympics? Steph: So, I played loads of sports growing up, all kinds of sports. the average.īobby: You’re a sports coach, but how did you get into sports? This would make the average higher or lower than would be expected. An average could be skewed because of an unusually high or low value. that could skew close skew If a set of data is skewed, it is not evenly spread out. The average used needs to take into account any outliers close outlier A value that is an unusual result that lies well beyond the rest of the data. The most appropriate average to use depends on the data values, and what conclusions need to be made.Īn average is meant to reflect a typical value. Together with the range, averages are used to summarise data. It is calculated by subtracting the lowest value from the highest value. It is a measure of how spread out the values are. The range close range The difference between the highest and lowest values in a set of numbers. The mode can have one value, more than one value, or no value. and mode close mode A type of average calculated by finding the value that occurs most often. If there are two middle numbers, the median is the mean of those two numbers. To calculate the mean, add the values together and divide the total by the number of values., median close median A type of average calculated by finding the middle value of a set of numbers in ascending order. They are called the mean close mean The most commonly used measure of average. An average is a single ‘typical’ value that is used to represent a set of values.
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