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# 840 :: 2/11/10

Sat verbal scores are normally distributed with a mean of 426 and a standard deviation of 94. Use the Empirical Rule to determine what percent of the. . .
Empirical Rule 
# 819 :: 10/15/09

For a particular sample of 50 scores on a psychology exam, the following results were obtained.
First quartile = 52 Third quartile = 84 Standard dev. . .
Chebyshev's Theorem,
Midrange,
Empirical Rule 
# 572 :: 1/13/09

At one university, students are given zscores at the end of the semester rather than the traditional GPAs. The mean and standard deviation of all stu. . .
Empirical Rule,
ZScore 
# 493 :: 11/4/08

On a police sergeants exam, the historical mean scored was 80 with a standard deviation of 20. Four offiers scored 195,175,191, and 189 respectively. . . .
Empirical Rule,
ZScore,
Unusual Event,
Percent Score 