Answer:
A
Step-by-step explanation:
Answer:
The proportion of customers who used coupons within the last 2 years is 0.1089.
Step-by-step explanation:
A proportion is the number of desired outcomes divided by the number of total outcomes.
Proportion of customers who used coupons within the last 2 years.
Desired outcomes:
Number of receipts which are discounted by coupons, which is 49
Total outcomes:
Total number of receipts, which is 450
Proportion:

The proportion of customers who used coupons within the last 2 years is 0.1089.