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when return from a project can be assumed to he normally distribute, the area under the...


when return from a project can be assumed to he normally distribute, the area under the curve can be determined from statistical table based on standard deviation 68.26 percent of the distribution will fall within one standard deviation of the expected value ( D +1)
a. Assume project A has an expected value of $22,000 and a Standard deviation of $4,400
what is the probability that the outcome will between $19,800 and $24,200?

b. what is the probability that the outcome will be between $13,200 and $30,800

c. what is the probability that the outcome will be at least $15,000?

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Answer #1

1
=NORMDIST(24200,22000,4400,TRUE)-NORMDIST(19800,22000,4400,TRUE)=0.382924922548026

2
=NORMDIST(30800,22000,4400,TRUE)-NORMDIST(13200,22000,4400,TRUE)=0.954499736103642

3
=1-NORMDIST(15000,22000,4400,TRUE)=0.944184981822255

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