PART 2 : PROBABILITY Statistics - PART 2 : PROBABILITY

• ✓
  $1$
• B
  $0$
• C
  $0.5$
• D
  Between $0$ and $1$

Answer: A.

• A
  $P(A \cup B)=P(A)+P(B)$
• ✓
  $P(A \cup B)=P(U)$
• C
  $P(A \cup B)=P\cdot P(B)$
• D
  $P(A \cup B)=P(A)-P(B)$

Answer: B.

• A
  $P(B / A)=P(B)$
• B
  $P(A / B)=P(A)$
• C
  $P(A \cup B)=1$
• ✓
  $P(A-B)=P(A)$

Answer: D.

• A
  Selecting a card at random from $52$ cards
• B
  Selecting $5$ schools at random from the schools of a city
• C
  Selecting an item at random from a lot of items
• ✓
  Measuring weight of an infant

Answer: D.

• A
  $A^{\prime}$
• B
  $B$
• ✓
  $A$
• D
  $A^{\prime} \cap B^{\prime}$

Answer: C.