Transcript Advanced LABVIEW

Advanced LABVIEW
EE 2303
Overview Of Presentation
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Introduction to Probability
Keywords in Probability
Sample Problems in Probability
Overview of Experiment
Summary
What is Probability???
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Probability is a measure of “how likely
an event is to happen”.
Mathematical Expression:
Number of Favorable outcomes
Total Number of possible outcomes
Example
Tossing a coin:
Probability of getting an HEAD=
½
Probability of getting a TAIL=1/2
KEYWORDS IN PROBABILITY
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An experiment is any process that
generates well-defined outcomes.
The sample space for an experiment
is the set of all experimental
outcomes.
An “Event” is an element of the
sample space, any one particular
outcome.
Tossing a Die
Events:
1
Sample space:
S ={1, 2, 3, 4, 5, 6}
2
3
4
5
6
Some graphic screen captures from Seeing Statistics ®
Some images © 2001-(current year) www.arttoday.com
•1
•6
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S
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FACTS ABOUT PROBABILITY
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Permissible values for Probability: 0- 1
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Probability of an Impossible Event = 0
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Probability of Sure Event = 1
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Probability of Event not happening
= 1 – probability (event happening)
Probability (“Event happening at least once)
= 1- probability ( event not happening)
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Sample Problems
Experiment: Rolling a die
Sample Space: S = {1, 2, 3, 4, 5, 6}
Probabilities: Each Event has a 1/6
chance of occurring.
Example
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Toss a fair coin twice. What is the probability of
observing at least one head?
HH
HT
TH
TT
ANSWER : Probability (at least 1 head) = 3/4
Some graphic screen captures from Seeing Statistics ®
Some images © 2001-(current year) www.arttoday.com
Hints for Pre lab….
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When experiment is performed “n times”…
(Probability of event happening)n..
[note: for event to occur successively]
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Probability of Event not happening
= 1 – probability (event happening)
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Probability of Event happening at least once =
1- prob (event not happening)
Working in the Diagram
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Draw a For Loop
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Functions 
Structures  For
Loop
Draw a Case
structure
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Functions 
Structures  Case
Adding More to Diagram
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Add a shift
register
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Operate Value tool
 Right Click on
edge of For Loop
 Select Add
Register
Add 2 addition
boxes
Add division box
Adding More to Diagram
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Add Random
Number
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Functions 
Numeric 
Random (0-1)
Add Round to
Nearest
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Functions 
Numeric  Round
to Nearest
Adding More to Diagram
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Add Equal box
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Functions 
Comparison 
Equal?
Add Wait box
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Functions  Time
& Delay  Wait
(ms)
Need Some Constants
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Add constant of
value 100 to Wait
(ms)
Add constants of
value 1 to
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Both additions
Shift Register
Add constant of
value 0
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Equal box
Need Some Wire
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Wire the circuit up
as shown
Change the case
to “True”
Wire the tunnels
through the Case
structure
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Of “True” case
Run the Simulation
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Return to Front Panel
Change to Operate Value Tool
Choose a number of trials
“Run simulation once”
Summary
 Probability…
 Overview
of Experiment..
 Hints to Pre lab…