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06+Ch04a

06+Ch04a - Chapter4a ThisWeek Lectures Today Hawkes...

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BIT 2405 Quantitative Methods I Chapter 4a

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This Week Lectures Hawkes Today
Next Week Lectures Hawkes Hawkes 3.X due at 11:59 pm  Monday Night , 2/7.

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I posted StandardDeckOfCards.pdf  in the Hawkes Help folder on  Scholar. This may help you with your Hawkes  Certificates that involve using a deck of  playing cards. Show you the cards and what are “Face Cards” Suits  And such You will need to understand the structure to figure  out probabilities.
Questions?

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Chapter 4  Introduction to Probability Today Next Time KEY Lecture # Chapter TEXT Quantitative Methods I, Anderson, Sweeney & Williams Hawkes Learning Systems: Statistics HLS Secti on Topic Sectio n Topic 06 Ch04a.ppt 07 Ch04b.ppt 4.1 Experiments, Counting Rules, and Assigning Probabilities 4.1 Classical Probability 4.2 Events and their Probabilities 4.2 Probability Rules 4.3 Some Basic Relationships of Probability 4.3 Counting Rules 4.4 Conditional Probability 4.4 Additional Counting Techniques (Complete 4.1, 4.2, & 4.3 FIRST)
We’ve Been Looking at Elements In Reality by  Measuring Characteristics and then Characterizing  the Datasets. Reality ?

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Now We Will Consider a Different WAY to Look at  Some Things in Reality. Reality Reality
Things That Can Be Viewed as “Games of Chance”  with a number of Possible “Random” Outcomes. Reality PROBABILITY

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Probability as a Numerical Measure of the Likelihood of Occurrence 0 1 .5 Increasing Likelihood of Occurrence Probability: The event is very unlikely to occur. The occurrence of the event is   just as likely as it is unlikely. The event is almost certain to occur.
An Experiment and Its Sample Space  An experiment   is any process that generates  well-defined outcomes.  The sample space  for an experiment is the set of  all experimental outcomes.  An experimental outcome is also called a sample  point .

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We look at a “situation” in reality and see if we  can look at it as an “experiment” to gain  insight.
Joe Tailgates at the VT home games. What’s the likelihood Joe drinks alcohol at the  next tailgate?

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If Joe ALWAYS drinks at tailgates, then it’s  not an “experiment” because there is only  ONE outcome. BTW: If Joe NEVER drinks at tailgates, then  it’s also not an “experiment.”
If Joe drinks sometimes and other times he  doesn’t drink at tailgates, then we can view  this as an experiment . There are 2 sample points in the sample space:  1. Joe drinks & 2. Joe doesn’t drink.

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An Experiment and Its Sample Space Experiment:  Coin Toss Sample Space: S = {Heads, Tails} Sample Points (Experimental Outcomes): Let  n   ≡ number of sample points n = 2 Count  all the possible Outcomes.
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