I'm working my way through some probability questions but, despite employing the correct approach, I'm falling at the last hurdle. Please show me how 13/15 x 0.5 x 0.5 x O.5 x 0.5 + 2/15 x 0.3 x 0.3 x 0.3 x 0.3 becomes 5.52%.
I just can't arrive at that result.
As an elderly gentleman who has decided to encourage his 'little grey cells' to become more active, I have joined your happy band in the hope of having a good workout. Currently I'm using the 'Khan Academy' site to help blow away the cobwebs but will doubtless be postings queries soon.
Much power to your elbows.