Find the expected value of the random variable.The random variable X is the number of people who have a college degree in a randomly selected group of four adults from a particular town. Its probability distribution is given in the table.
A. 1.20
B. 1.44
C. 2.00
D. 1.10
Answer: A
Mathematics
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Find the domain and range of the inverse of the given function.f(x) = x6 + 3, x ? 0
A. Domain: (-?, 0]; range: (-?, 3] B. Domain: [0, ?); range: [3, ?) C. Domain: [3, ?); range: [0, ?) D. Domain and range: all real numbers
Mathematics
Provide an appropriate response.What number is 
% of 500?
A. 122.5 B. 12,250 C. 20.4082 D. 2,040.82
Mathematics
Solve the problem.A can of lemonade comes with a measuring scoop and directions for mixing are 6 scoops of mix for every 18 cups of water. How much water is needed to make the entire can of lemonade if there are 40 scoops of mix?
A. 720 cups B. 13 cups C. 120 cups D. 240 cups
Mathematics
Insert <, >, or = to make the statement true.-64 
-26
A. > B. = C. <
Mathematics