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11 
Conditional Probability
Review of finding conditional probability from Twoway tables. Finding conditional probability using the Formula 
Theta (new & old & workbook) Ex 22.06

12 
Tree diagrams with conditional Probability 
Theta (new & old & workbook) Ex 22.03 
13 
Probability tree practice
Mixed probability tree problems

Theta (new & old & workbook) Ex 22.03 
Excellent conditional probability website (link to setosa.io) 
Dodgy Dave's letter
company sends 35% of letters 'standard' and the rest by 'express' 

Form a probability tree Fill in known probabilities
Calculate Mouseover above 
