Grab bag

This task is about the chance of shapes getting pulled from a bag.
Sean is about to take one shape out of the bag. You can see the shapes through the bag but Sean can not.

 


a)

Draw the shape which Sean is most likely to take out of the bag.

  
 

b)

Draw the shape which Sean is least likely to take out of the bag.

  
 

c)

Is Sean more likely to take a or a out of the bag? Draw the shape.

  
 

d)

Is Sean more likely to take a or a out of the bag? Draw the shape.