Answer:
Conditional relative frequency = 0.67
Step-by-step explanation:
50% off Buy 1, get 1 free Total
Item 1 12 8 20
Item 2 20 10 30
Total 32 18 50
Condition relative frequency table:
50% off Buy 1, get 1 free Total
Item 1 [tex]\frac{12}{20}=0.6[/tex] [tex]\frac{8}{20}=0.4[/tex] [tex]\frac{20}{20}=1[/tex]
Item 2 [tex]\frac{20}{30}=0.67[/tex] [tex]\frac{10}{30}=0.33[/tex] [tex]\frac{30}{30}=1[/tex]
Total [tex]\frac{32}{50}=0.64[/tex] [tex]\frac{18}{50}=0.36[/tex] [tex]\frac{50}{50}=1[/tex]
Therefore, conditional relative frequency of selling an item marked 50% off, provided the item sold is item 2 = 0.67
