If P(A ) = 0.84, P(B ) = 0.76, and P(A B) = 0.90, then P(A B) ...

[Chloeellawright]

If P(A ) = 0.84, P(B ) = 0.76, and P(A  B) = 0.90, then P(A  B) is:
 
  A) 0.06
  B) 0.14
  C) 0.70
  D) 0.83

Question 2

If the population variance 2 is unknown, a sample variance s2 is a better estimator of 2 if the denominator is s2 formula is (n - 1 ) rather than n.
 
  Indicate whether the statement is true or false

[Moriaki]

Answer to Question 1

C

Answer to Question 2

TRUE