P(PlayTennis=yes, Outlook=rain, Temperature=mild, Humidity=high, Wind=strong) = [Choose ] P(PlayTennis=no, Outlook=rain, Temperature=mild, [Choose ] Humidity=high, Wind=strong) = P(PlayTennis=yes|Outlook=rain, Temperature=mild, [Choose ] Humidity=high, Wind=strong) = P(PlayTennis-no|Outlook=rain, Temperature=mild, [Choose ] Humidity=high, Wind-strong) = { Will the player play tennis on the given day? [Choose ]

COMPREHENSIVE MICROSOFT OFFICE 365 EXCE
1st Edition
ISBN:9780357392676
Author:FREUND, Steven
Publisher:FREUND, Steven
Chapter9: Formula Auditing, Data Validation, And Complex Problem Solving
Section: Chapter Questions
Problem 8AYK
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Using the naive Bayes classifier approach, decide if a person will/will not play tennis on a day that is:

  • Outlook=rain
  • Temperature=mild
  • Humidity=high
  • Wind=strong

 

Use the "PlayTennis" dataset that was used in class (probabilities.pptx).

 

Calculate the prior probabilities
P(PlayTennis=yes) = 9/14 = 0.64

P(PlayTennis=no) =

Calculate the conditional probabilities
P(Outlook=rain|PlayTennis=yes) =
P(Outlook=rain|PlayTennis=no) =
P(Temperature=mild|PlayTennis=yes) =
P(Temperature=mild|PlayTennis=no) =
P(Humidity=high|PlayTennis=yes) =
P(Humidity=high|PlayTennis=no) =
P(Wind=strong|PlayTennis=yes) =

P(Wind=strong|PlayTennis=no) =

Calculate the joint probabilities (before normalization)
P(PlayTennis=yes, Outlook=rain, Temperature=mild, Humidity=high, Wind=strong) =
P(PlayTennis=no, Outlook=rain, Temperature=mild, Humidity=high, Wind=strong) =

Calculate the conditional probabilities (after normalization)
P(PlayTennis=yes|Outlook=rain, Temperature=mild, Humidity=high, Wind=strong) =
P(PlayTennis=no|Outlook=rain, Temperature=mild, Humidity=high, Wind=strong) =

Based on the above joint probabilities, is the player likely to play tennis on the given day?

Group of answer choices
 
 
P(PlayTennis=yes, Outlook=rain, Temperature=mild,
Humidity=high, Wind=strong) =
[Choose ]
P(PlayTennis=no, Outlook=rain, Temperature=mild,
[Choose ]
Humidity=high, Wind=strong) =
P(PlayTennis=yes|Outlook=rain, Temperature=mild,
[Choose ]
Humidity=high, Wind=strong) =
P(PlayTennis-no|Outlook=rain, Temperature=mild,
[Choose ]
Humidity=high, Wind-strong) = {
Will the player play tennis on the given day?
[Choose ]
Transcribed Image Text:P(PlayTennis=yes, Outlook=rain, Temperature=mild, Humidity=high, Wind=strong) = [Choose ] P(PlayTennis=no, Outlook=rain, Temperature=mild, [Choose ] Humidity=high, Wind=strong) = P(PlayTennis=yes|Outlook=rain, Temperature=mild, [Choose ] Humidity=high, Wind=strong) = P(PlayTennis-no|Outlook=rain, Temperature=mild, [Choose ] Humidity=high, Wind-strong) = { Will the player play tennis on the given day? [Choose ]
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