Measures of central location - Mean
In this video, I show you how to calculate the mean for a set of data, what it means and I also touch on deviation about a mean. You are also shown how to solve this problem.
In order to get a grade A in his maths, Stuart must achieve a mean score of at least 80 points. If over the first 5 modules he has a mean score of 78. What is the lowest score needed in his final module in order to get an A grade?
For further revision on the mean see the Exam Questions
I want to make maths freely available to all students throughout the world. Over 1500 videos have been completed so far and more go up most days, see my facebook page. If you can offer a donation to keep this project alive and/or like a page, then this is really appreciated. To make a secure donation, please click the button on the right. Thankyou. More ...