Hello Can someone clear up the following for me.. I've been doing 2005 to 2008 past papers for CT5, and it keeps referring to for calculating multiple decrements. I know it all changed in 2015 but can't find where it explicitly states what's changed but from the notes should we only be doing for finding multiple decrements? Thanks!
Yes - you should be calculating the multiple decrement probabilities from the forces of decrement, as in your last two formulae. The FAQ section in your Study Guide lists those past exam questions affected by the syllabus change.