well looks like 6 total shapes
for choosing a square, there are 3 different ways the event can occur.
favoralbe outcomes: you choose the dark square, the grey square, or the light square
for choosing a circle, there is only 1 circle so there is only one way you cna choose a circle. the favorable outcome is to choose that circle.
for not choosing a star, there are 4 ways that can happen. the favorable outcomes: you choose the circle, choose the dark square, choose the grey square, and choose the white square