Assume That the Weight Loss for the First Month of a Diet

Multiple Choice

Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform distribution. Find the probability of the given range of pounds lost
-Less than 9 pounds

A) $\frac { 1 } { 2 }$

B) $\frac { 1 } { 3 }$

C) $\frac { 5 } { 7 }$

D) $\frac { 1 } { 6 }$