The assembly time for a product is uniformly distributed between 2to 10 minutes. The probability of assembling the product between 7 to 9 minutes is
A) 0.
B) 0.50.
C) 0.2.
D) 0.25.

Question

Quizplus · Accepted Answer

The total range is 8 minutes (10-2). The range from 7 to 9 minutes is 2 minutes. The probability is the range of interest (2 minutes) divided by the total range (8 minutes), which is 0.25.

The Assembly Time for a Product Is Uniformly Distributed Between