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2.4.10 Linear transformation and standardising (A-level only)

In X∼N(μ,σ2)X\sim\mathrm{N}(\mu,\sigma^2)X∼N(μ,σ2), what does the second parameter represent?

A

A Normal variable is standardised using Z=X−μσ\boxed{Z=\dfrac{X-\mu}{\sigma}}Z=σX−μ​​.

B

It shifts every value by bbb.

C

The variance, not the standard deviation.

D

YYY is also Normally distributed.

2.4.10 Linear transformation and standardising (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /2.4.10 Linear transformation and standardising (A-level only)

Flashcards for OCR (MEI) A Level Maths 2.4.10 Linear transformation and standardising (A-level only), covering the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03. 24 cards, matched to the OCR (MEI) A Level Maths (H640) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.