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Activities Immidiate Optimistic Most Pessimistic Expected

Predecessor Probable Time (tE)

Critical A - 4 5 12

Critical ! A " 4#5 15

C A 2 " 4 "

$ C % 22 1&

E ! 4 %

' C " 4 5 4

$E 1#5 " 4#5 "

Critical * ! 5 + 15 %

Critical I * " 4 5 4

Critical , I 2 4 4

2%

Proect .aria/ce 0#1111111

ta/dard $eviatio/ "#&1%41+

Probabilit 2+ 3ees

6 -""1205 2+

loo at /ormal table

prob 6 "+45

"+#457

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* 2&

% 2& 2& I 24

&

2& 4 24

E 1% 10 22 24 , 2%

2 &

21 21 " 24 24 4 2%

$ 10

1& 21

' 1"

4 2%

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'I8I*

2%