This is probably a basic question for you lot...but let's say I had calculated the chance of an event happening (in this case lets say a goal for a specific team in a football match...) as being 40% at any point in that game. Then I have also worked out that based on all the goals they score, they score 35% of all of them in the first half of their games...

How do I calculate the percentage chance of them scoring in the first half of the next game? Is it simply .4 multiplied by .35 then multiplied by 100?

My follow on question would then be...that works out as 14%...the second half would then be .4 multiplied by .65 yes? Resulting in 26%?

Any help much appreciated!

Chris