Question

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(a triangle or a square is chosen first).

Answer 1

There total quantity of shapes is 5 + 2 + 2 + 4 = 13.
The total quantity of triangles and squares is 2 + 5 = 7.
The probability of choosing a triangle or a square first is given by
\[P(\triangle\ or\ \square\ chosen\ first)=\frac{7}{13}\]