Question

what is the probability p(0 10 years ago

Answer 1

@grabill @jigglypuff314

Answer 2

@DarrenMadx

Answer 3

the sum of probabilities is:
\(0.3+0.5+0.15+0.15+0.25=1.35\)
so the requested probability, regards the probabilities for events \(1\) and \(2\) only:
So we can write:
\[p = \frac{{0.3 + 0.5}}{{1.35}} = ...?\]