Posted by **Sarah** on Thursday, December 17, 2009 at 11:15am.

bob received a z score of 0.9 on a college entrance exam. If the raw scores have a mean of 540 and a standard deviation of 80 points,what is his raw score?

- Statistics -
**PsyDAG**, Friday, December 18, 2009 at 11:26am
Z = (score - mean)/ standard deviation

.9 = (score - 540)/80

Solve for score.

- Statistics -
**arun**, Monday, January 25, 2010 at 1:33am
i can learn statistics problems

- Statistics -
**jamie**, Wednesday, September 24, 2014 at 9:44pm
The mean scores on the stats exam was 75 points with a standard deviation of 5 points and becks z score was -2. How many points did he score?

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