Monday

March 30, 2015

March 30, 2015

Posted by **Joe** on Thursday, January 18, 2007 at 9:25pm.

Use a z-score formula to find John's raw score.

The formula: z = (x - mean)/sd -->sd = standard deviation

Using what you know to find what you don't know:

1.3 = (x - 480)/70

Solve for x.

I hope this will help.

**Answer this Question**

**Related Questions**

Statistics - bob received a z score of 0.9 on a college entrance exam. If the ...

math - Find the z-score for the given raw score, mean, and standard deviation. ...

statistics - say that you have a distribution of exam scores with a mean of 57 ...

Statistics - In a normal distribution of scores, four participants obtained the...

Statistics - In a normal distribution of scores, four participants obtained the ...

math - Find the z-score for the given raw score, mean, and standard deviation. ...

math - Find the z-score for the given raw score, mean, and standard deviation. ...

math - what is the z-score for the given raw score, mean and standard deviation...

statistics - Eric has computed that it takes an average (mean) of 17 minutes ...

Math Statistics - Answer the following. Show your work to get credit. Exam ...