AS Stats Chapter 5: Probability

6 flashcards · Mathematics · by TheoTyson

1. What is a sample space?

   The set of all possible outcomes.

2. What is the event A\text{A}A and B\text{B}B ?

   The intersection of A\text{A}A and B\text{B}B . A\text{A}A ∧\land∧ B\text{B}B . A\text{A}A ⋅\cdot⋅ B\text{B}B .

3. What is the event A\text{A}A or B\text{B}B ?

   The union of A\text{A}A and B\text{B}B . A\text{A}A ∨\lor∨ B\text{B}B . A\text{A}A +++ B\text{B}B .

4. What is the event not A\text{A}A ?

   The compliment of A\text{A}A . ¬\lnot¬ A\text{A}A . Aˉ\bar{A}Aˉ .

5. What is the criterion for mutually exclusive events?

   P(A or B)=P(A)+P(B)P(A \,\, \text{or} \,\, B) = P(A) + P(B)P(AorB)=P(A)+P(B)

6. What is the criterion for independent events?

   P(A and B)=P(A)×P(B)P(A \,\, \text{and} \,\, B) = P(A) \times P(B)P(AandB)=P(A)×P(B)