Olivia and Sam will randomly select mints from a jar that contains 7 blue mints and 3 orange mints.
Olivia selected a blue mint, replaced it back in the jar, and then selected an orange mint.
Sam selected a blue mint, did not replace it back in the jar, and then selected an orange mint.

Who had the highest probability?

Sam had the highest probability at 70%
Sam had the highest probability at 23.3%
Olivia had the highest probability at 70%
Olivia had the highest probability at 23.3%