Normal distribution if the mean per capita income in the us

Normal Distribution: If the mean per capita income in the U.S. is $39,000 and the standard deviation is 5000 - What percent of the population.

a. Earn more than $70K per capita

b. Earn less than 20K

c. Answers may seem unrepresentative. Why? What can be the explanation of the un-representativeness?

d. The top 10% of the income earners earn more than what (We are the 90%, right?)?

What is the a upper-bound and b lower-bound modulus of : the mechanical properties of a metal may be improved by incorporating fine particles of its oxide. given that the

If a fish has an average density of 1090 kgm3 and mass 165 : a fish uses a swim bladder to change its density so it is equal to that of water enabling it to remain suspended under

Determine the number of sensors required and the cost of : determine the number of sensors required and the cost of auxiliary power in a facility that provides hot water to a

A how much farther west does the blue boat travel compared : two racing boats set out from the same dock and speed away at the same constant speed of 86.0 kmh for half an hour

Normal distribution if the mean per capita income in the us : normal distribution if the mean per capita income in the u.s. is 39000 and the standard deviation is 5000 - what

What is the mean number of people who will drop out of the : americans spend over 30 billion dollars on a variety of weight-loss products and services. in a study of retention

Ira savings plans and average a 7 annual return on : sammy put away 10 of his 75000 per year salary for the 45 years he is working into 401k and ira savings plans and

A write x-versus-t equations of motion for both cars : two cars drive on a straight highway. at time t 0 car 1 passes mile marker 0 traveling due east with a speed of 24.0

A rapid test for the presence in the blood of antibodies : a rapid test for the presence in the blood of antibodies to hiv the virus that causes aids gives a positive result with