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A) If Y is normal with μ = 200 and σ = 12, what is the probability that Y will be between 186 and 210?
B) If X is normal with μ = 8.48 and σ = 1.60, what is the difference between the two values of X which include the central 70% of the probability?
C) If Z is standard normal, below what value of z is 2% of the probability?
(Recall that μ = 0 and σ = 1 for the standard normal.)
If a pregnancy length is randomly taken from this distribution, what is the probability that the length of that pregnancy is less than 260 days?
question a population has a standard deviation of 50. a random sample of 100 items from this population is selected.
Compute the variance and standard deviation of the number that will arrive within two days.
In the past, of all the students enrolled in "Basic Business Statistics" 10% earned A's 20% earned B's, 30% earned C's, 20% earned D's and the rest either failed or withdrew from the course.
maria collected data on amount spend for entertainment each week on average. after constructing a histogram maria
we calculate a statistical power and find that it is 0.93. this means that if the null hypothesis is we have a chance
suppose that you have two fair dice with n sides. the first die has faces with numbers 12...n the second die has faces
The pie chart below shows how the annual budget for a certain company is divided by department. If the total budget is 125,000,000, what amount is budgeted for Support, Sales, and Media combined?
Whats the probability that he'll shoot par or better on at least four of the last five holes -what can the house expect to receive for each roll of the dice - Whats the probability that he'll shoot par or better on at least four of the last five hole..
A cyclic equilibrium process in n moles of an ideal gas with cV = 2.5R is formed of three sub-processes: a → b is a constant pressure doubling of the volume; b → c is at constant volume with decreasing pressure;c → a is adiabatic.
In a Sgallop poll of 1012 randomly selected adults, 9% said cloning of humans should be allowed. Use a .05 significance level to the test claim that less than 10% of all adults said that cloning should be allowed.
You are the incoming inspector for potato chips - you are to ensure that each bag has 16 ounces or more in it. You want your testing to be at the level of significance of 0.05.
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