Posted by **Denise** on Tuesday, May 21, 2013 at 2:50pm.

The scores on a standardized test are normally distributed with the mean of 750 and standard deviation 70. Find the probability that a score is more than 890.

- Math -
**PsyDAG**, Tuesday, May 21, 2013 at 6:40pm
Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.

- Math -
**Denise**, Wednesday, May 22, 2013 at 2:36am
The scores on a standardized test are normally distributed with the mean of 750 and standard deviation 70. Find the probability that a score is more than 890.

This is from my Math Models class. I am not taking Statistics. Please someone show me how to do answer this-I don't just want an answer. I want the steps!!

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