Stat Help Please
Determine which sampling method was used in each scenario. on a particular day 5 flights are selected at random and all of the passengers on these 5 flights are screened. Airport security uses a random number generator to determine the next passenger to screen.
history
Who came to power in China, instituting a Communist regime that would bring great suffering to the nation's people
Global History
How were the Mongols able to conquer so much territory so rapidly?
statistics
A television program director has 14 shows available for Monday night and 5 shows must be chosen. How many different possible combinations are there?
math
a wheel makes 8 1/10 revolutions per minute if it rotates for 85 mins. how many revolutions will it make
Math
The Midtown Middle School cheerleaders earned $175 at a car wash. If this amount is 25% of the cost of a new set of uniforms, what is the total cost fora a set of uniforms? Explain your reasoning.
general chemistry
so to get volume, you do v=(1.33)*3.14*99e-7^3????
general chemistry
the radius of a chlorine atom is 99 pm and its mass is 5.89 X 10^-23 grams what is the density
chemistry
inorganic chemistry
chemistry
I am supposed to add NH4 and C2H3O2 together and write the new ion. Would it be NH7C2O2? do I add the hydrogens together and were would it go in the order then?
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