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2.4.1 Discrete probability distributions

Card 1 of 22

A random variable has a numerical value determined by the [     ]. A random variable is discrete when its possible values can be listed separately.

A

A finite probability distribution is valid only if every probability is between 000 and 111 inclusive and the probabilities sum to 111.

B

For an integer-valued XXX, X<3X<3X<3 excludes 333, whereas X≤3X\le 3X≤3 includes 333.

C

23\frac2332​, from 318+418+518\frac3{18}+\frac4{18}+\frac5{18}183​+184​+185​.

D

A random variable has a numerical value determined by the outcome of a random experiment. A random variable is discrete when its possible values can be listed separately.

Card 1 of 22

2.4.1 Discrete probability distributions Flashcards

  1. A Level
  2. /Maths
  3. /2.4.1 Discrete probability distributions

22 flashcards on OCR A Level Maths 2.4.1 Discrete probability distributions: the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards