Looks correct to me but i'm not 100% sure
Answer:
18 and 73 hundredths
the number is 18 plus .73 .73 is 73 hundredths
1. When determining the average change in a data set
2. When the data is skewed. You'll need to relocate your central station of data. Because the skewed data is dragging all your data away from its true typical value.(If the data is correct then the answers of mean, median, and mode should almost be identical.)
3. Determining the most common category, typically based on data points or a graph (example: transport)
Hope this helps!! :)