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Is the standard deviation of the salaries of Company Y’s employees greater than the standard deviation of the salaries of Company Z’s employees?[br/](1)The average (arithmetic mean) ...
There are 11 women and 9 men in a certain club. If the club is to select a committee of 2 women and 2 men, how many different such committees are possible?
An integer greater than 1 that is not prime is called composite. If the two-digit integer n is greater than 20, is n composite?[br/](1)The tens digit of n is a factor of the units digit of n.[br...
[math]C_(m,n) = (m!) / [(m-n)! n!][/math] for nonnegative integers m and n, m ≥ n. If [math]C_(5,3) = C_(5,x)[/math] and x ≠ 3, what is the value of x?
The sum of three integers is 40. The largest integer is 3 times the middle integer, and the smallest integer is 23 less than the largest integer. What is the product of the three integers?
If [math]xy != 0[/math], is [math]x/y = 1[/math]?[br/](1)[math]x^2 = y^2[/math][br/](2)xy>0
A construction company was paid a total of $500,000 for a construction project. The company’s only costs for the project were for labor and materials. Was the company’s profit for th...
According to the passage, the computer models(highlight text) re...
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