The Eco Pulse survey from the marketing communications firm Shelton Group asked individuals to indicate things they do that make them feel guilty (Los Angeles Times, August 15, 2012). Based on the survey results, there is a .39 probability that a randomly selected person will feel guilty about wasting food and a .27 probability that a randomly selected person will feel guilty about leaving lights on when not in a room. Moreover, there is a .12 probability that a randomly selected person will feel guilty for both of these reasons.

a. What is the probability that a randomly selected person will feel guilty for either wasting food or leaving lights on when not in a room or both (to 2 decimals)?

b. What is the probability that a randomly selected person will not feel guilty for either of these reasons (to 2 decimals)?

Explanation:

probability of people feeling guilt for wasting food ( Pf ) = 0.39

probability of people feeling guilty for leaving light on ( Pl ) = 0.27

probability of people for both = P( f ∩ l ) = 0.12

A) probability of feeling guilty for either conditions

P ( f ∪ l ) = ( Pf + Pl ) - P( f ∩ l )

              = ( 0.37 + 0.27 ) - 0.12

              = 0.54

probability for feeling guilty for both = 0.12

B) probability of not feeling guilty for either conditions

P ( f¹ ∪ l¹ ) = 1 - P ( f ∩ l )

                = 1 - 0.12

                = 0.88

answer; the above statement/question is ( true);

whole quiz

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2.operations

3. the principle of looking at the supply chain as a whole in order to improve the overall flow through the system.

4. produced; performed

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