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Card 1 of 20

For nnn observations, the arithmetic mean is [...]\text{[...]}[...].

A

For a frequency table, the mean is xˉ=∑fx∑f\boxed{\bar{x}=\frac{\sum fx}{\sum f}}xˉ=∑f∑fx​​.

B

Actual values may differ from their class midpoints.

C

For nnn observations, the arithmetic mean is xˉ=∑xn\boxed{\bar{x}=\frac{\sum x}{n}}xˉ=n∑x​​.

D

Arrange it in ascending order.

Card 1 of 20

2.2.10 Measures of central tendency Flashcards

  1. A Level
  2. /Maths
  3. /2.2.10 Measures of central tendency

20 flashcards on OCR (MEI) A Level Maths 2.2.10 Measures of central tendency: the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03.

Flashcards