This is incorrect
What Riley did wrong i believe is he/she did 5 out of 15. Which is incorrect. Their are 15 begonia seeds and 5 petunia seeds which add up to a total of 20 seeds.
Riley missed this step.
The true answer to this would be 5 out of 20.
Which can also be 1/4 probabiility
Hope this helps!
Brainliest is always appreciated if you believe its deserved! :)
