Assume that X has a normal distribution, and find the indicated probability.
-The mean is $\mu = 15.2$ and the standard deviation is $\sigma = 0.9$. Find the probability that $X$ is greater than $15.2$.
A)1.0000
B)0.0003
C)0.5000
D)0.9998

Question

Quizplus · Accepted Answer

Since $X$ has a normal distribution with a mean of $15.2$, the probability of $X$ being greater than the mean (15.2) is 0.5 or 50%. This is because, in a normal distribution, half of the values lie above the mean and half lie below the mean.

Assume That X Has a Normal Distribution, and Find the Indicated