True or False Please explain the answer My stats formula kn

True or False - Please explain the answer. My stats formula knowledge is very weak.

True or False - Please explain the answer. My stats formula knowledge is very weak. 17: True or False (a-c) ______a. P(A intersaction B) is P(B|A) * P(A) _______b. P(A intersaction B) =0 means that A and B are mutually exclusive events. _____c.P(A)+P(A) = 1

Solution

a) is true (Fact)

b) is true, (defition of mutually exclusiveness)

c) true (because A-bar is complement of A, sun probability of event and its complement is 1)