Final answer:
The provided statistical information from different surveys does not support an answer to the question about online shopping cart abandonment rates.
Step-by-step explanation:
The question regarding the percentage of online shoppers who abandon their shopping carts does not directly correspond to the provided statistical information from surveys and exercises related to store visits, household purchasing decisions, shopping enjoyment, and car ownership. The data from these surveys and exercises cannot be used to accurately answer the specific question about shopping cart abandonment rates since they pertain to different aspects of consumer behavior and preferences.
To provide an answer to the original question, one would need to reference specific studies or reports on shopping cart abandonment rates, which is a topic frequently analyzed in e-commerce research. However, such data is not included in the reference information provided here.