Introduction to normal distribution

Reference no: EM1313657

Heights of 18-year-old men are approximately normally distributed, with mean 68 inches and standard deviation 3 inches.

a. What is the probability that an 18-year-old man selected at random is between 67 and 69 inches tall?

b. If a random sample of nine 18-year-old men is selected, what is the probability that the men height is between 67 and 69 inches?

c. Compare the answer for a and b. Is the probability in part b much higher? Why would you expect this?

Reference no: EM1313657

Questions Cloud

Company''s cash budget and its income statement : Which of the following statements is most correct concerning the relationship between a company's cash budget and its income statement

Blood and cell components : liquid portion of blood is known as ______. Most of the plasma comprises of ______ that serves as a solvent and carries heat. ______ like sodium, potassium and ______ serve to manage the osmotic balance in the blood.

Explain evaluation of investment proposal by profitability : Explain Evaluation of Investment proposal through Profitability Index and Rank the proposals in terms of preference using the project profitability index

What is the maximum torque that this coil can experience : Compute the average number of ion pairs produced along the entire paths of 12.0 MeV electrons that are brought to rest in air. Would number of ion pairs produced in soft tissue be significantly different.

Introduction to normal distribution : Heights of 18-year-old men are approximately normally distributed, with mean 68 inches and standard deviation 3 inches.

Milton friedman monetary framework : What does Friedman believe about expansionary monetary policy? Do you think Keynesian economists would agree?.

The magnitude of the acceleration due to gravity : A bus travelling along the straight road at 100km/hr-1 and the bus conductor make at 6kmhr-1 on the floor of the bus in the same direction on the bus. Find the speed of the conductor relative to road and relative to the bus. If the bus conductor now ..

Determine the company''s accounting net income : Computation of net income and Use the following information to calculate the company's accounting net income for the year.

Drawing a simulation experiment for car agency : Draw a simulation experiment for car agency and simulate using fleet of four rental cars for 10 days.

User Account

All Pages