First of all, this wager only concerns the home second team. Secondly, the number of goals that the punter has to predict should be exact. If the punter predicts wrongly, then he/she will definitely loose the bet.
The goals that are counted here are those that have been scored with the regular time of the game. Any goal scored after 90 minutes and that the minutes are not even added time, then those do not count in the bet at all. The ones that are also included are those that are scored at the added time after the elapse of 45 minutes of first half or after the 90 minutes of the time scheduled.
The odds in this case are very high since predicting the exact number of goals to be scored by any team is always not that easy. The probability of getting the number right is always slender. It can even fall below the 30%. But, a true punter should not be bothered very much with the percentage probability since betting involves taking of financial risks at any time of the day or night.
Let me use an example of a match between Chelsea FC and Arsenal FC which was played at Stamford Bridge stadium (Chelsea's home ground)
Home team exact goals:
|Chelsea – 0 goals (1.52)||Chelsea – 2 goals (1.51)|
|Chelsea – 1 goal (1.66)||Chelsea – 3 goals ( 2.11)|
|Chelsea- 4 or more goals ( 2.77)|
That is just how most of the bookmakers in the world will display this type of market to their customers.
Since Chelsea at that time was the big favourite and had good run of performance, it was given those odds because the bookies had predicted that the home team might score more goals.