Ch4 Probability Distributions
2
Introduction to Random Variables
A random variable (r.v.) is a numerical description of the
outcome of an experiment.
A discrete random variable may assume either a finite
number of values or an infinite sequence of values.

Ch3: Introduction to Probability
1
Ch3: Introduction to Probability
2
Probability Concepts
Probability is a numerical measure for the likelihood that
an event will occur.
Probability is measured on a scale from 0 to 1.
Introduction to Probability
0 P( A)

SCI4001 Elementary Statistics
Exercise 3 Introduction to Probability
1. Eight runners are hoping to take part in a race, but the track has only six lanes. In how many
ways can six of the eight runners to be assigned to lanes?
2. Seven different cars are t

SCI 4001 Elementary Statistics
Assignment 1 (2013-14 Semester 1)
Duration: 2 weeks
1.
In a report on conditions in the workplace, it was decided to conduct a survey in
three factories, A, B and C, in a particular area, employing 600, 400 and 1000
workers