Discrete Random Variables Flashcards
1
Q
Discrete
A
Cannot be broken down into fractions or decimals
2
Q
Continuous
A
Can be broken down into fraction and decimals
3
Q
The expected value of the discrete random variable X
A
Is denoted as E(X)
4
Q
The expected value of X squared is
A
5
Q
Variance of X formula
A
6
Q
If X is a discrete random variable and g is a function,
A
then g(X) is also a discrete random variable
7
Q
If g is a function, X is a discrete random variable,
Expected value of g(X) formula is:
A
8
Q
If X is a random variable and a and b are constants,
Then E(aX + b) =
A
9
Q
If X and Y are random variables then E(X+Y) =
A
10
Q
If X is a random variable and a and b are constants then Var(aX + b) =
A
