Discrete Random Variable

The total probability of a discrete random variable is ...

• MUST equal 1

• MUST less than 1

• MUST bigger than 1

• MUST in between 0 to 1

• FALSE

• TRUE

• FALSE

• TRUE

If the expected value is negative, are you expected to win?

• YES

• NO

• 4.67

• 5

• 14

• 7.5

How many possible outcomes will appear if you roll a common dice?

• 12

• 6

• 1

• 36

Those are properties of variance except