Is this bad weather data? : meteorology

I was trying to put weather data into my google calendar when I found this: https://ibb.co/SN45y23

How is it possible that there is >100% combined chance of rain or snow?? How can I get the PoP from this?

I don’t study meteorology so I apologize if this is a dumb question but I searched all over but I can’t seem to find the answer. Can anyone explain this to me?

Thanks so much in advance.