Probably Pistachio — Stuart J. Murphy

Nothing goes right for Jack all day long. He can't find his favorite sneakers, he spills milk on his math homework, and worst of all, he gets tuna fish for lunch. Will things ever get better?

Readers will learn how to tell when something is certain, more likely, less likely, or impossible as Jack keeps hoping his streak of bad luck will break. Maybe, just maybe, pistachio ice cream for dessert will do the trick. But will it happen? Considering how Jack's day has been going, PROBABLY NOT