The number of units expected to be sold is uniformly distributed between 300 and 500.If r is a random number between 0 and 1,then the proper expression for sales is
A)200(r).
B)r + 300.
C)300 + 500(r).
D)300 + r(200).

Question

Quizplus · Accepted Answer

The correct expression for sales, given a uniform distribution between 300 and 500, is 300 + r(200). This is because the range of sales is 200 (500 - 300), and the minimum sales number is 300. Multiplying the range (200) by a random number r between 0 and 1 and then adding the minimum value (300) scales the random number to the correct interval.

The Number of Units Expected to Be Sold Is Uniformly