Download A Normal distribution is a continuous, symmetric, bell shaped

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

page
1
page
2
page
3
Document related concepts
no text concepts found
Transcript 
A Normal distribution is a continuous, symmetric, bell­
shaped distribution of a variable. 1. The mean, median, and mode are equal and are located at the center of the distribution. 2. The curve is symmetric about the mean.
3. The curve is continuous; that is, there are no gaps or holes. For each value of X, there is a corresponding value of Y. 4. The curve never touches the X axis. 5. The total area under a normal distribution is equal to 1.00 or 100%. 1
The area under the part of the Normal curve that lies...
within 1 standard deviation of the mean is approximately 0.68 or 68%
within 2 standard deviations of the mean is approximately 0.95 or 95%
within 3 standard deviations of the mean is approximately 0.997 or 99.7%
2
Using the Empirical Rule: Jennie Scored 600 on the Critical Reading section of the SAT Reasoning test. In what percentile does Jennie rank? The SAT exams are scaled so that scores follow a Normal Distribution with mean 500 and standard deviation 100. 3
Related documents