Critical path= B-E-F-I = 8.83+8.83+8+5= 30.67
variance of critical path = 1.500
Standard deviation of critical path= 1.225
1) what is the probabilty that the project will take less than 30 days?
2) what is the probabilty that the project will take less than 29 days?
3) what is the probabilty that the project will take more than 29 days but less than 31 days?
4) what is the probabilty that the project will take more than 31 but less than 32 days?