Premise: A skateboarder attempts to do a trick over a homemade ramp .
Correct statement: It is impossible that a skateboarder practices jumping over a high ramp for the first time .
Incorrect statement: There is a better than even chance that a skateboarder practices jumping over a high ramp for the first time .
Correct statement: We believe that a skateboarder wearing protective gear attempts to do a trick over a homemade ramp .
Incorrect statement: We doubt that a skateboarder wearing protective gear attempts to do a trick over a homemade ramp .
Correct statement: Chances are about even that despite his mother 's warnings , the skateboarder wants to see if he can get some air on his skateboard
Incorrect statement: It is almost certain that despite his mother 's warnings , the skateboarder wants to see if he can get some air on his skateboard
Correct statement: There is a better than even chance that a skater is doing a stunt on camera .
Incorrect statement: There is almost no chance that a skater is doing a stunt on camera .
Correct statement: It is probably not the case that a skateboarder attempts a kickflip
Incorrect statement: There is a very good chance that a skateboarder attempts a kickflip