Today, Wednesday, Class Munster (Mr Stuart’s 3^rd Class) investigated just how old are most teachers’ cars. Are they all new? All old? How old? Before you find out, what do you think? 

Well, first the class went into the teachers’ car park (not just teachers—also SNAs, visitors, and Nano Nagle staff) and looked at the registration plates. They tallied how many cars were bought in each year (90s, 00, 01, 02, … 10, 11). Then they checked their data before making a bar chart. What did they find out?

1. There were 54 cars in all.
2. 19 cars were 5 years old or newer; 35 were over 5 years old.
3. 12 cars were over 10 years old.
4. Half the cars were bought in 2004 or before, half after 2004.
5. The years that most cars were bought in were 2003 (6) and 2007 (9).
6. Only two cars were bought this year.

Last year in October another 3^rd class did this investigation. There were 57 cars last year. Are more teachers ‘Walking on Wednesdays’ (W.O.W.)?