Discrete Random Variables quick quiz

Description

A Levels Maths Quiz on Discrete Random Variables quick quiz, created by luisnorth on 12/02/2014.
Quiz by luisnorth, updated more than 1 year ago
 Created by luisnorth almost 10 years ago
35
1

Resource summary

Question 1

Question
X~B(10,0.5) E(X)=
• 0.1
• 0.5
• 2.5

Question 2

Question
X~Geo(0.5) P(X=0) = 1
• True
• False

Question 3

Question
A bag contains 5 white rabbits and 8 black rabbits. As part of a magic trick, two are removed at the same time. What is the probability they are both white?
• 14/39
• 20/39
• 1
• 20/169
• 0
• 5/39

Question 4

Question
X~Geo(p) E(x) = ?
• 1/p
• (1-p)^x-1 * p
• np
• Σ(x^2 * p) - μ^2

Similar

Fractions and percentages
GCSE Maths Symbols, Equations & Formulae
HISTOGRAMS
CUMULATIVE FREQUENCY DIAGRAMS
GCSE Maths: Understanding Pythagoras' Theorem
Using GoConqr to study Maths
New GCSE Maths
Maths GCSE - What to revise!
GCSE Maths Symbols, Equations & Formulae
STEM AND LEAF DIAGRAMS
FREQUENCY TABLES: MODE, MEDIAN AND MEAN