Let f(x) = cxe−x2 if x ≥ 0 and f(x) = 0 if x < 0. (a) For what value of c is f a probability density function?

(b) For that value of c, find P(1 < X < 3).

Aresearch group wants to find the opinions’ of city residents on the construction of a new downtown parking garage. what is the population of the survey downtown shoppers downtown visitors downtown workers city residents

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?