Homework Help: Statistics

Posted by Rachel on Tuesday, November 2, 2010 at 12:10am.

IQ test scores are normally distributed with a mean of 97 and a standard deviation of 11.An individual's IQ score is found to be 123.Find the z-score corresponding to this value

Statistics - PsyDAG, Tuesday, November 2, 2010 at 10:33am
Z = (score-mean)/SD
Statistics - apryl, Wednesday, August 24, 2011 at 8:15pm
For a particular value, this table gives the percent of scores between the mean and the z-value of a normally distributed random variable. What percent of the total population is found between the mean and the z-score, assume z = 2.79
Statistics - rebecca, Sunday, December 4, 2011 at 1:42pm
For a particular value, this table gives the percent of scores between the mean and the z-value of a normally distributed random variable. What percent of the total population is found between the mean and the z-score, assume z = 2.57.
PLEASE HELP!!!

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