On 1 shape symmetric 1 2 68 95 997 rule empirical

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: tric 1. 2. “68-95-99.7 Rule” (Empirical Rule) (Empirical Empirical Rule Empirical About 68% of observations fall within one standard About deviation of the mean deviation About 95% of observations fall within two standard About deviations of the mean deviations About 99.7% of observations fall within three standard About deviations of the mean deviations Empirical Rule on the Curve Empirical N(490, 100) Empirical Rule Demonstration http://www.stat.tamu.edu/~west/applets/empiric http://www.stat.tamu.edu/~west/applets/empiric alrule.html Empirical Rule Example Empirical The scores for all high school seniors taking the The verbal section of the Scholastic Aptitude Test (SAT) in a particular year had a mean of 490 and a standard deviation of 100. The distribution of SAT scores is bell-shaped. What percentage of seniors scored between 390 and What 590 on this SAT test? 590 A rather exclusive university only admits students who rather were among the highest 16% of the scores on this test. What score would a student need on this test to be qualified for admittance to this university? qualified Empirical Rule Examp...
View Full Document

Ask a homework question - tutors are online