If a+b+c+d=20 and a^2+b^2+c^2+d^2=108 then the variance of the data is? A)4
B)2
C)7
D)7/2

If g(x) is an odd function, which function must be an even function?

Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?

Vanessa earns a base salary of $400.00 every week with an additional5% commission on everything she sells. vanessa sold $1650.00 worth of items last week.