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2.4.2 Statistical distributions

Card 1 of 20

For integer-valued XXX, translate “fewer than 4” into a cumulative probability.

A

P(X<4)=P(X≤3)P(X<4)=P(X\le 3)P(X<4)=P(X≤3)

B

P(X≥4)P(X\ge 4)P(X≥4)

C

For X∼Po⁡(λ)X\sim\operatorname{Po}(\lambda)X∼Po(λ), P(X=r)=e−λλrr!\boxed{P(X=r)=\frac{e^{-\lambda}\lambda^r}{r!}}P(X=r)=r!e−λλr​​.

D

The discrete uniform distribution.

Card 1 of 20

2.4.2 Statistical distributions Flashcards

  1. A Level
  2. /Maths
  3. /2.4.2 Statistical distributions

20 flashcards on WJEC A Level Maths 2.4.2 Statistical distributions: the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4.

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