Calculating Probabilities
Chapter 4
1
Calculating Probabilities
4.1 Sample Spaces & Basic Probabilities
4.2 Conditional Probabilities & the Test for
Independence
4.3 And, Or & Not Probabilities
Chapter 4
2
Introduction
Probability analysis allows us to e

1. Introduction
2
Groundwater Hydrology: What is it?
Hydrology: study of the occurrence, distribution, movement
and properties of the waters of the earth and their
environmental relationship
including surface water
hydrology and groundwater hydrology
Grou

STAT 371 Probability and Statistics for Scientists and Engineers
Assignment 2 [30]
Submit by: Wednesday, October 12, 2016
[10] Problem 1. The number of imperfections in a weave of textile has a Poisson distribution
with a mean of 4 per square-yard.
a) Fin

2. Probability
Probability
To provide a model for the repetition of an experiment
To provide a model for the population frequency
distributions
Definitions and Concepts
Probability: The measure of ones belief in the
occurrence of a future event.
Random or

Using Numbers to Describe Data
Chapter 3
1
Using Numbers to Describe Data
3.1 Some Useful Notation
3.2 Measures of Central Tendency
3.3 Measures of Variability
3.4 Measures of Association
Chapter 3
2
Some Useful Notation
Statistics involves arithmetic
M

Using Graphs & Tables to
Describe Data
Chapter 2
1
Using Graphs & Tables to Describe
Data
2.1 Types of Data
2.2 Frequency Distributions & Histograms
for Quantitative Data
2.3 Tables, Bar Graphs & Pie Charts for
Qualitative Data
2.4 Time-Series Graphs
2.5

Ch. 4. Continuous Random variables &
Their Probability Distributions
The type of r.v. that takes on any value in
an interval is called continuous.
The p.d. for a continuous r.v., unlike the
p.d. for a discrete r.v., can not be obtained
by assigning nonzer

Ch. 3. Discrete Random variables &
Their Probability Distributions
Why to study the probability distribution
The probability of an observed sample is
needed to make inferences about a
population.
The sample observations are frequently
expressed as numeric

Part 3 Groundwater Flow to Wells
1
Steady Unidirectional Flow in Confined Aquifer
Head h
h1
b
q
h2
Example 30: If h1 = 120 ft, h2 =
110 ft, L = 2000 ft, b =230 ft, K
= 0.25 ft/hr, what is the flow
rate per unit width (q)?
q' =
Q
KAi K (b width)i
dh
=
=
=