View Answered Questions
| No. & Date Asked | Question |
# 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 z-scores at the end of the semester rather than the traditional GPAs. The mean and standard deviation of all stu. . .
Empirical Rule,
Z-Score |
# 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,
Z-Score,
Unusual Event,
Percent Score |
