A project network is shown below.Use a forward and a backward pass to determine the critical path,and then fill out the table below.Activity times are in weeks. 
Now assume that the times listed are only the expected times instead of being fixed times.Is the probability of being finished in more than 28 weeks more or less than 50%?
Definitions:
Freud
Sigmund Freud was an Austrian neurologist known for founding psychoanalysis, a clinical method for treating psychopathology through dialogue between a patient and a psychoanalyst.
Personality Traits
Fundamental characteristics or qualities that form an individual's distinctive character.
Social Interest
A concept in psychology that refers to an individual's inclination towards being interested in the welfare and well-being of others in society.
Adler
Alfred Adler was an Austrian medical doctor, psychotherapist, and founder of the school of individual psychology. He emphasized the importance of feelings of inferiority and the striving for superiority in his theories.
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