A random variable is normally distributed with a mean of 25 and a standard deviation of 5. If an observation is randomly selected from the distribution, what value will be exceeded 10% of the time?
A. 31.40
B. 28.60
C. 66.23
D. 14.56
Answer:A
A random variable is normally distributed with a mean of 25 and a standard deviation of 5. If an observation is randomly selected from the distribution, what value will be exceeded 10% of the time?
A. 31.40 B. 28.60 C. 66.23 D. 14.56