Unit 1 - Analysis of Data : Percentiles

Question 1

Percentiles

Answer 1

Divide data into 100 equal parts
Q₁ is the same as P₂₅
Q₂ is the same as P₅₀
Q₃ is the same as P₇₅

Question 2

Percentiles range

Answer 2

We use P₉₀ - P₁₀ with percentiles as they give a better range while still not including outliers