Using the following uniform density curve, answer the question.
-What is the probability that the random variable has a value greater than 3.3?
A) 0.5875
B) 0.5375
C) 0.4625
D) 0.7125

Question

Using the following uniform density curve, answer the question. 
-What is the probability that the random variable has a value greater than 3.3?
A) 0.5875 
B) 0.5375 
C) 0.4625 
D) 0.7125

Quizplus · Accepted Answer

The probability that the random variable has a value greater than 3.3 is the area under the normal distribution curve to the right of 3.3. This area is equal to 1 - P(X < 3.3), where P(X < 3.3) is the cumulative distribution function of the normal distribution. Using a standard normal distribution table, we find that P(X < 3.3) = 0.4125. Therefore, the probability that the random variable has a value greater than 3.3 is 1 - 0.4125 = 0.5875.

Using the Following Uniform Density Curve, Answer the Question