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2.2.7 Calculations of mean and standard deviation

Card 1 of 28

What does the mean indicate about a dataset?

A

It can change the mean considerably.

B

fx2fx^2fx2, not (fx)2(fx)^2(fx)2.

C

Its centre.

D

Early rounding can make the final standard deviation inaccurate.

Card 1 of 28

2.2.7 Calculations of mean and standard deviation Flashcards

  1. A Level
  2. /Maths
  3. /2.2.7 Calculations of mean and standard deviation

28 flashcards on OCR A Level Maths 2.2.7 Calculations of mean and standard deviation: the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards