Abowl of flower seeds contains 5 petunia seeds and 15 begonia seeds. riley calculated the probability that a randomly selected seed is a petunia seed as 1/3. describe and correct riley’s error.

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! :)

B? ? i'm most likely wrong but i think it would be b