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2.4.6 Probability functions and discrete random variables

What does P(X=x)P(X=x)P(X=x) represent?

A

The probability of at least one occurrence can be calculated using P(X≥1)=1−P(X=0)\boxed{P(X\ge 1)=1-P(X=0)}P(X≥1)=1−P(X=0)​.

B

X<3X<3X<3

C

The probability that XXX takes the specific value xxx.

D

P(X=1)=12P(X=1)=\frac12P(X=1)=21​

2.4.6 Probability functions and discrete random variables Flashcards

  1. A Level
  2. /Maths
  3. /2.4.6 Probability functions and discrete random variables

Flashcards for OCR (MEI) A Level Maths 2.4.6 Probability functions and discrete random variables, covering the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03. 20 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.