Discrete Random Variables

2022 HCI P2 Q9 Abel has $1$ white bag of marbles and $1$ black bag of cards and he uses them to create a game. The white bag contains $2$

Home 2022 TMJC P2 Q6 The probability function of a discrete random variable, $X$, is given as follows: $Pleft( X=x right)=left{ begin{matrix}ptext{ }text{if},x=0,,,,,,,,, \frac{1}{3}text{P}left( X=x-1 right)text{ }text{if},x=2,4,6 \qtext{ }text{if},x=1,3,5,, \end{matrix}

2022 ASRJC P2 Q10 A bag contains nine numbered discs. Three discs are numbered $3$, four discs are numbered $4$ and two discs are numbered $-1$. Two discs are drawn

Home 2022 VJC P2 Q7 An unbiased yellow cubical die has two faces labelled $10$, two faces labelled $30$ and two faces labelled $50$. An unbiased green cubical die has

ACJC DRV Tutorial Q4 The probability distribution of a discrete random variable $X$ is as follows: Find $text{Var}left( X right)$.The random variable $Y$ is defined by $Y={{X}_{1}}-{{X}_{2}}$, where ${{X}_{1}}$, ${{X}_{2}}$