The random variable x is known to be uniformly distributed between 70 and 90. The probability of x having a value between 80 to 95 is
A)0.75
B)0.5
C)0.05
D)1

Question

Quizplus · Accepted Answer

The uniform distribution between 70 and 90 means the total range is 20 (90-70). The range from 80 to 90 is 10, so the probability is 10/20 = 0.5. Values beyond 90 (up to 95) are not possible in this distribution.

The Random Variable X Is Known to Be Uniformly Distributed