Reading dot plots & frequency tables The following dot plot shows the mass of each rock in Nija's rock collection. Each dot represents a diffe 1 + 36 37 38 39 40 42 43 45 Mass (grams) What is the most frequent mass of a rock?

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.