What these measures tell you
What these measures tell you
A measure of location tells you where a data set is centred. Common examples are the mean, median and quartiles, and they help answer "what is a typical value?".
Step-by-step lessons on Edexcel AS Level Maths Measures of Location and Spread, covering 2.1 Measures of Central Tendency, 2.2 Other Measures of Location, 2.3 Measures of Spread, 2.4 Variance and Standard Deviation, and 2.5 Coding. Each one builds up to exam-style questions. Build fluency in the core algebra, surds and trigonometry topics early, since they underpin the calculus, statistics and mechanics content that follows.