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2.2.13 Outliers

Card 1 of 20

What proportion of observations lies between Q1Q_1Q1​ and Q3Q_3Q3​?

A

The middle 50%.

B

For outliers more than two standard deviations from the mean, the upper boundary is xˉ+2s\boxed{\bar{x}+2s}xˉ+2s​.

C

Under the 1.5 IQR rule, the upper fence is Q3+1.5IQR\boxed{Q_3+1.5\mathrm{IQR}}Q3​+1.5IQR​.

D

It pulls the mean upwards towards itself.

Card 1 of 20

2.2.13 Outliers Flashcards

  1. A Level
  2. /Maths
  3. /2.2.13 Outliers

20 flashcards on OCR (MEI) A Level Maths 2.2.13 Outliers: the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03.

Flashcards