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

Item 2

Total

Therefore, conditional relative frequency of selling an item marked 50% off, provided the item sold is item 2 = 0.67
You got the whole thing right
Answer: 2
This question is asking you to divide 20 by 10. This means:
20 ÷ 10=2
If 10 can go into a number 2 times, it means that 10•2=20. So, since we dont know how many times 10 goes into 20, we divide 20 by 10.
Below I have attached an image of the long division in case you need to do that as well.
Hope this helps comment below for more questions :)