What value is exceeded ten percent of the time


A raondom variable is normally distributed with a mean of 25 and a standard deviation of 5. If an observation is randomly selected from the distribution,

a. What value is exceeded 10% of the time?
b. what value is exceed 85% of the time?

In solving for "X" - I got the following answers:

a. 29.5
b. 25.75

Is this correct? ( I used .90 for Z on the first problem, using the Z-score formula, and .15 for Z on the second problem)

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