Modeling Discrete Data: Quiz
Problem 3
Consider the curve
Which of the following graphs shows this curve?
Answers, problem 3
Taking the above function, we can express it
as
We can see that we have a quadratic equation,
where the coefficient of a2 is 1/8,
which is positive. This means that this curve will
lie above the x-axis and have a minimum point since the
function increases for all a. Also we know that the general
shape of a quadratic curve is bell-shaped and therefore our
answer is 3.
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