Information NOW (SOON)  E-mail Query                         Contact Mr. Johns:  ejohns@herrinhs.org                             

Updated:            

11/04/08

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Histogram: A pictorial representation of the frequency distribution of the observed sample data.

Sample Mean: A measure of the central tendency of the data.

Range of Sample:

Xmax - Xmin

112 - 57   =   55

 

Mode of Sample: The most frequently occurring value in a sample.

 

2,3,4,5,6,6,7,8,9,2,3,

2,3,4,2,2,4,5,6,2,2,1

 

The mode is 2.

 

Median of Sample: The middle value (or average of the two middle values) when the data are ordered from smallest to largest.

 

1,2,3,4,5,6,7,8,9,10,11,12,13

 

Conversion of Units

Measurement and Significant Figures

Experimental Error

Welcome to my Web site!

This site will serve as a link to students' classes and resources they may need. Some of the features of the site are:

 

  • Lesson plans for Biology, Geology, Meteorology & Ecology classes

  • Internet resources for completing class projects

  • Resources for Commonwealth Honors Academy

  • Flora of Southern Illinois Web Page

CHA Resources

CHA 08 Science Syllabus

Campus Data Tree Height Worksheet

John Snow Overview

Advanced Blackboard Search

John Snow (UCLA Presentation)

 

Murray State University Commonwealth Honors Academy

CHA Students and Our Virtual Library

 

MSU University Libraries

Academic Colleges and Departments

CHA VIII

CHA VII

CHA VI

CHA V

CHA IV

CHA III

CHA I

Mr. Johns' CHA Syllabus 2008

TREE IDENTIFICATION BASICS

Tree database
Tree Photo Look-Up
Plant database
How to site the Plant database

Data Resources

The Great New Madrid Earthquake
ESRI Downloadable data sets
Key to Census Data Layers
GIS Resources
Search Your Watershed
HUC Codes for your Watershed
Base Map Example

Kentucky State Geology

Photos of Minerals and Rocks for Geology Class

Local Drinking Water Information

Orthophotos

Seamless Elevation Maps

Geo Community

Community Factfinder

Historical Census Browser

Historical County Lines

GIS and Spatial Data Links

Shaded Relief Maps

Tennessee County Maps

Arkansas, Illinois, Indiana, Kentucky, Missouri, Ohio, and Tennessee Demographic facts by county

 

 

 

Weather

 

 

 

           

 

 

 

   

  

 

Mr. Johns' Home Page

 

Colleague Links

Mr. Kepple

Mr. Rose Titration Lab

Mr. Margherio

Communities & Forums

 

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This site was last updated 11/04/08