'Aggregate' - a total of several figures added together (if you meant 'average', there can be batting and bowling averages.
A batting average of 40 would mean the batsman averages 40 runs for every innings he bats.
A bowling average of 30 means that each wicket the bowler has taken has cost him 30 runs (i.e. a wicket every 30 runs scored off his bowling).
'Pairs'- a pair is when a batsman gets 2 ducks in one game.
'Economy rate'- how many runs a bowler has gone for per over(i.e. bowled 10 overs for 50 runs = an economy rate of 5 runs per over).
'Strike rate' - how many deliveries a bowler bowls for each wicket (i.e. bowled 10 overs and taken 3 wickets = strike rate of 20 (10 times 6 divided by 3). Means the bowler takes a wicket every 20 deliveries.
Hope this helps.
Edited By jonah on Dec. 13 2001 at 10:47