Suppose X Is a Random Variable Best Described by a Uniform

Multiple Choice

Suppose x is a random variable best described by a uniform probability distribution with c = 3 and d = 7. Find the value of a that makes the following probability statement true: $\mathrm { P } ( \mathrm { x } \leq \mathrm { a } ) = 0.75$

A) 4
B) 5.8
C) 3
D) 6