Calculate Total Jellies:

Total Jellies = Red Jellies + Blue Jellies + Yellow Jellies

Total Jellies = 4 + 6 + 5

Total Jellies = 15

Not choosing a red jelly means choosing a blue

**or**yellow jelly

P(not red jelly) = P(blue) + P(Yellow)

P(not red jelly) = (Blue Jelly + Yellow Jelly) / Total Jellies

P(not red jelly) = (6 + 5)/15

P(not red jelly) =

**11/15**