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August 2, 2014

August 2, 2014

Posted by **koo** on Sunday, November 14, 2010 at 4:06am.

Q1a).What proportion of students had a higher score than alice?

Qb)Find the score exceeded by 2.5% of the students.

- statistics probability -
**PsyDAG**, Sunday, November 14, 2010 at 9:42amZ = (score-mean)/SD

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

- statistics probability -
**Ray**, Friday, December 9, 2011 at 9:02pmThe scores on a test are normally distributed with a mean of 140 and a standard deviation of 28, what is the score that is one standard deviation above the mean?

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