EHG201

EHG  201 Introduction to Stastical Geology

Calendar Description:  Definitions, introduction, measure of central tendency, measure of dispersion, data analysis processing, linear regression and time series.

Lecture Topics

The focus of this course is to provide a basic understanding of the principles of statistic and it use in the different sciences especially in geology .

Exam Schedule

Quizzes every other Monday

Frisest exam  :  Monday, ( 1 december 2008)

Second exam :  saturday ,  ( 1  january 2009)

Final exam: according to university final exam schedule

Other Useful References:

 See the Hydrogeology Links

Instructor Info: Dr. Masoud  E. Al-ahmadi,  Room 246 ( Head of  Hydrogeology  Department ) or  213  building 55 ,

 Office Hours:  I am available  Everyday  at my office during Working hours.

 e-mail,  or speak to me to set up an appointment. I will make time for you.

Grading Policy

Your grade depends on in-class participation and performance on your quizzes, exams, and assignments.

Quizzes: Bi-weekly quizzes will be brief (about 5 mins.) and are intended to help prepare you for the exams.

Exams: Exams will be a combination of multiple choice and short-answer questions, and will also have components similar to the work you do on the problem sets. Make-up exams can be arranged if extraordinary circumstances prevent you from taking the exam at the scheduled time. Be sure to arrange for a make-up as soon as extenuating circumstances arise.

Assessment of final course grade will be based on:

Quizzes                      10%

Homework               20%

Exam 1                    15%

Exam 2                    15%

Final exam              40% 

Hydrogeology Links

Organizations/Links Pages

USGS Water Page

National Ground Water Association

Geological Society of America

Hydrology Web Homepage

U.S. Environmental Protection Agency (EPA) Homepage

NYSDEC Division of Water

REVIEW OF BASIC MATHEMATICS

The following short review of basic mathematics may be useful to you in solving the problems.

LOGARITHMS

The logarithm of a number is the exponent of that power to which a base number must be raised to yield the value of the number. There are two bases. Common logarithms use the base 10 and are designated by log. Natural logarithms use the base 2.718… and are designated by ln. The number 2.718… is also designated by the letter e.

The log of 25.7 is 1.409933 and may be found by entering the number 25.7 on your calculator and then pressing the “log" key. This means that if you take the number 10 and raise it to the 1.409933 power, you will get 25.7. You can do this on your calculator by entering 10, pressing the “y^x" key, entering 1.409933 and then pressing the “=” key. This process is known as finding the antilog or inverse log of a number. Thus, if 1.409933 is the log of 25.7, then 25.7 is the inverse log of 1.409933.

The ln of 25.7 is 3.246491 and may be found by entering the number 25.7 on your calculator and then pressing the "ln x" [or “ln"] key. This means that if you start with e and raise it to the 3.24691 power, you will get 25.7. If you have an “ex" key on your calculator, you can enter 3.246491 and the press the “ex" key to yield 25.7. If you don't have an “ex" key, you can still perform the operation. Since we are finding the inverse ln, enter 3.246491 and press the “INV" key followed by the “ln" [or "ln x"] key.

Logarithms have the following relationships:

log ab = log a + log b

log a/b = log a -log b

log an = n log a

Both the natural and common logarithm of 1.0000 is 0. The logarithm of any number greater than 1.0000 is positive. The logarithm of any number less than 1.0000 is negative.

            The log of 10 is 1, the log of 100 is 2, the log of 1000 is 3, etc.

EQUATIONS FOR AREA

Area of a circle with radius r

A =  pr²           (pi = 3.1416)

            Area of a triangle with a base b and altitude h

A = 1/2 bh

Area of a rectangle with sides a and b

A = ab

Area of a parallelogram with sides a and b and an included angle z

A = ab sin z.

Area of a trapezoid whose parallel sides are a and b and with an altitude h

A = 1/2(a + b)h.

EQUATIONS FOR CIRCUMFERENCE

Circumference of a circle with a diameter d

C = p d.

Circumference of a triangle of sides a, b and c

C = a + b + c.

Circumference of a rectangle with sides a and b

            C  = 2 a +  2b.

EQUATIONS FOR VOLUME

Volume of a regular prism

V = area of base x altitude.

Volume of a pyramid

V= 1/3 area of base x altitude.

Volume of a cylinder with radius r and height h

V = p r² h

Volume of a cone with radius r and height h

V = 1/3 p r² h

EQUATION OF A STRAIGHT LINE IN RECTILINEAR COORDINATES

y = m x + b

where

m is the slope of the line 

b is the intercept of the y axis.

TRIGONOMETRIC FUNCTIONS OF A RIGHT TRIANGLE

Sine A = sin A = a/h

Cosine A = cos A = b/h

Tangent A = tan A = a/b

Cotangent A = cot A = b/a

Secant A = sec A = h/b

Cosecant A = csc A = h/a

DIFFERENTIALS

d ax = a dx

d (u + v) = du + dv

d uv = udv + vdu

d (u/v) = (vdu – udv)/v²

d xⁿ = n x^n-l dx

d x^y = yx^y-1 dx + x^y ln x dy

d e^x = e^x dx

d e^ax = a e^axdx

d a^x = a^x ln a dx

d ln x = x ^-1 dx

d log x = x ^-1 log e dx

Homework-الواجبات