Question

The weather forecast states that there’s a 35% chance of rain tomorrow describe a method that you could use to model the situation

Answer 1

One way to model this situation would be to use a 10 x 10 grid and shade in 35 of the 100 boxes.  This could serve as a picture representation for the part of an area that has a chance for rain.

Answer 2

Sample answer but same logic:

Put 20 marbles in a bag. 7 of them must be a certain color with the rest of the 13 marbles another color. Reach for a marble one time.