Math 150, Fall 2021 El Camino College G. Song c: If P(A) = 0.4, P(B) = 0.3. Suppose A and B are mutually exclusive. Find P(A or B). d: If IP(A) = 0.4, P(B) = 0.3. Suppose A and B are independent. Find P(A or B). e: If P(A) = 0.2, P(A and B) = 0.1 and P(A or B) = 0.7. Find P(B) 8: In a survey, 60% of people are in favor of a new public school and 85% are in favor of a new library. half of all those surveyed would like both a new school and a new library. What percentage supported neither a new library nor a new school?Section 4.2: Addition Rule and Multiplication Rule 6: Definitions and Important Facts: . Notation and formula for formal addition rule: P(A or B) = . Two event A and B are disjoint (or mutually exclusive) if Then the addition rule becomes P(A or B) = . Notation and formula for formal multiplication rule: P(A and B) = . Two event A and B are independent if Then the addition rule becomes P(A and B) = 7: Use addition rule or/ and multiplication rule to calculate the specific probability: a: If P(A) = 0.4, P(B) = 0.3 and P(A and B) = 0.2. Find P(A or B). b: If P(A) = ,, P(B) = - and P(A or B) = 00 1 CIT Find P(A and B)