Anthony is making a collage for his art class by picking shapes randomly. He has five squares, two triangles, two ovals, and four circles. Find P(circle is chosen first).

Question

anonymous · Answer

any guesses? 
ratio of the number of circles to the total number of shapes

directrix · Answer

The total number of shapes is 13. Of those, 4 are circles.

The probability of randomly choosing a circle as the first shape is the number of circles among the shapes divided by the total number of shapes.

P(circle is chosen first) = 4/? where ? is the total number of shapes.
@angieanaya   What do you think should be the value of ?